COLEMAN PRISON -- Twenty-one years into his nearly 50-year sentence, the graying man steps inside his stark cell in the largest federal prison complex in America.
He wears special medical boots because of a foot condition that makes walking feel as if he's "stepping on a needle." He has undergone tests for a suspected heart condition and sometimes experiences vertigo.
"I get dizzy sometimes when I'm walking," says the 63-year-old inmate, Bruce Harrison. "One time, I just couldn't get up."
In 1994, Harrison and other members of the motorcycle group he belonged to were caught up in a drug sting by undercover federal agents, who asked them to move huge volumes of cocaine and marijuana. After taking the job, making several runs and each collecting $1,000, Harrison and the others were arrested and later convicted. When their sentences were handed down, however, jurors objected.
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"I am sincerely disheartened by the fact that these defendants, who participated in the staged offloads and transports . . . are looking at life in prison or decades at best," said one of several who wrote letters to the judge and prosecutor.
In recent years, federal sentencing guidelines have been revised, resulting in less severe prison terms for low-level drug offenders. Harrison, a decorated Vietnam War veteran, remains one of tens of thousands of inmates convicted in the "war on drugs" of the 1980s and 1990s and who are still behind bars.
Harsh sentencing policies, including mandatory minimums, continue to have
lasting consequences for inmates and the nation's prison system. Today, prisoners 50 and older represent the fastest-growing population in crowded federal correctional facilities, their ranks having swelled by 25 percent to nearly 31,000 from 2009 to 2013.
Some prisons have needed to set up geriatric wards, while others have effectively been turned into convalescent homes.
The aging of the prison population is driving health-care costs being borne by American taxpayers. The Bureau of Prisons saw health-care expenses for inmates increase 55 percent from 2006 to 2013, when it spent more than $1 billion. That figure is nearly equal to the entire budget of the U.S. Marshals Service or the Bureau of Alcohol, Tobacco, Firearms and Explosives, according to the Justice Department's inspector general, who is conducting a review of the impact of the aging inmate population on prison activities, housing and costs.
"Our federal prisons are starting to resemble nursing homes surrounded with razor wire," said Julie Stewart, president and founder of Families Against Mandatory Minimums. "It makes no sense fiscally, or from the perspective of human compassion, to incarcerate men and women who pose no threat to public safety and have long since paid for their crime. We need to repeal the absurd mandatory minimum sentences that keep them there."
The Obama administration is trying to overhaul the criminal justice system by allowing prisoners who meet certain criteria to be released early through clemency and urging prosecutors to reserve the most severe drug charges for serious, high-level offenders.
At the same time, the U.S. Sentencing Commission, an independent agency, has made tens of thousands of incarcerated drug offenders eligible for reduced sentences.
Until more elderly prisoners are discharged -- either through compassionate release programs or the clemency initiative started by then-Attorney General Eric H. Holder Jr. last year -- the government will be forced to spend more to serve the population. Among other expenditures, that means hiring additional nurses and redesigning prisons -- installing showers that can be used by the elderly, for instance, or ensuring that entryways are wheelchair-accessible.
"Prisons simply are not physically designed to accommodate the infirmities that come with age," said Jamie Fellner, a senior advisor at Human Rights Watch and an author of a report titled "Old Behind Bars."
"There are countless ways that the aging inmates, some with dementia, bump up against the prison culture," she said. "It is difficult to climb to the upper bunk, walk up stairs, wait outside for pills, take showers in facilities without bars and even hear the commands to stand up for count or sit down when you're told."
For years, state prisons followed the federal government's lead in enacting harsh sentencing laws. In 2010, there were some 246,000 prisoners age 50 and older in state and federal prisons combined, with nearly 90 percent of them held in state custody, the American Civil Liberties Union said in a report titled "At America's Expense: The Mass Incarceration of the Elderly."
On state and federal levels, spiraling costs are eating into funds that could be used to curtail violent crime, drug cartels, public corruption, financial fraud and human trafficking. The costs -- as well as officials' concerns about racial disparities in sentencing -- are also driving efforts to reduce the federal prison population.
For now, however, prison officials say there is little they can do about the costs.
Edmond Ross, a spokesman for the Bureau of Prisons, said: "We have to provide a certain level of medical care for whoever comes to us."
"Companion aides" share a room with elderly prisoners at Devens. Some low-security inmates are tasked with caring for elderly prisoners.
except for the loud clang of heavy steel security doors that close behind a visitor, the Butner Federal Medical Center in North Carolina feels nothing like the prisons portrayed on television and in movies.
Elderly inmates dressed in khaki prison uniforms are not locked up during the day, but instead congregate with each other in their wheelchairs, wait for treatment in clinics and walk, sometimes with canes or walkers, through their living quarters.
Signs hang from the ceiling, directing prisoners to various units: "Urgent Care," "Mental Health," "Surgery," "Ambulatory Care, "Oncology."
"This facility mirrors a hospital more than a prison," said Kenneth McKoy, acting executive assistant to the warden at Butner, a prison about 20 minutes northeast of Durham. "We provide long-term care."
The facility is the largest medical complex in the Bureau of Prisons, which has 121 prisons, including six with medical centers. With more than 900 inmates in need of medical care, Butner even provides hospice-like care for dying inmates.
Taxpayers are increasingly picking up the tab for inmates who received lengthy mandatory sentences for drug offenses and have since aged and developed conditions that require around-the-clock medical care.
The average cost of housing federal inmates nearly doubles for aging prisoners. While the cost of a prisoner in the general population is $27,549 a year, the price tag associated with an older inmate who needs more medical care, including expensive prescription drugs and treatments, is $58,956, Justice Department officials say.
Harrison's crammed cell at the Federal Correctional Complex Coleman in Florida near Orlando is devoid of the clutter of life on the outside. The space he shares with another inmate has only a sink, a toilet, a bunk bed with cots, a steel cabinet, two plastic gray chairs, a desk and a bulletin board with a postcard of a Florida waterspout.
From a tiny window, he can see Spanish moss draped over trees in the distance.
Forty-five years ago, Harrison served with the U.S. Marines in Vietnam. A machine gunner, he was shot twice and was awarded two Purple Hearts. When he came back, he felt as though he had nowhere to turn. He later joined a motorcycle group known as the Outlaws.
Harrison was approached by an undercover agent who was part of a law enforcement team trying to bring down the group, which had been suspected of illegal activity. He and fellow members of the club were offered a kilogram of cocaine to offload and transport drugs. He declined, saying none of them wanted to be paid in drugs.
"I didn't want drugs, because I really wouldn't have known what to do with them," Harrison said in an interview. "We didn't sell them."
Harrison and the others took the job because the agents offered cash, and they needed money. Over a period of several months, they would move what they believed to be real drugs -- more than 1,400 kilos of cocaine and about 3,200 pounds of marijuana.
Harrison carried a gun for protection during two offloads. He didn't use it, but after authorities arrested him and fellow members of his group, he was charged with possessing a firearm while committing a drug offense.
His 1995 trial in Tampa lasted four months. His lawyer at the time argued "this was a government operation from beginning to end. . . . Everything was orchestrated by the government. . . . He was not a leader. The only leaders in this case, the only organizers in this case was the United States government."
The jury, nonetheless, found Harrison and the others guilty of transporting the drugs.
Harrison was sentenced to roughly 24 years for possessing cocaine and marijuana with the intent to distribute. The conviction on the firearms charge carried a 25-year penalty, meaning he is effectively serving a life sentence.
"There's no doubt that that's a harsh penalty," said U.S. District Judge Susan C. Bucklew during the sentencing hearing. "But that's what the statute says, and I don't think I have any alternative but to do that."
"I don't have a whole lot of discretion here," she said at another point.
After Harrison and the others were sentenced, several jurors expressed shock to learn how long those convicted were to spend behind bars.
"If I would have been given the right to not only judge the facts in this case, but also the law and the actions taken by the government, the prosecutor, local and federal law enforcement officers connected in this case would be in jail and not the defendants," juror Patrick L. McNeil wrote.
Six jurors signed a letter requesting a new trial be ordered, saying if they had been told by the court they could have found the government had entrapped the defendants, they would have found them not guilty.
"Bruce Harrison had never been involved in unloading drugs," said his current lawyer, Tom Dawson. "He didn't arrange for any of these drugs. The government did."
Andrea Strong, a childhood friend of Harrison, said he doesn't claim to have been a saint.
"But, in a compassionate world, this man would not be less than halfway through a sentence for a drug offense that happened 20 years ago," Strong said. "He would've done his time, paid his debt to society, and be released to his network of supportive family and friends."
Along with tens of thousands of other inmates around the country, Harrison is applying for clemency under the Obama administration's program to release drug offenders who have been in prison for at least 10 years and whose cases meet certain criteria.
"If I got out, I'd go back home and be with my three grandkids and help them out," Harrison said.
Julie Tate in Washington contributed to this report.