U.S. efforts to close Guantanamo at standstill - Gates

By Andrew Gray

WASHINGTON (Reuters) - U.S. efforts to close the military-run prison at Guantanamo Bay have reached a standstill due to legal and practical problems, Defense Secretary Robert Gates said on Tuesday.

"The brutally frank answer is that we're stuck and we're stuck in several ways," Gates told a U.S. Senate hearing when asked about his desire to shut down the detention site for terrorism suspects at the American naval base in Cuba.

Human rights groups and many governments, including allies of the United States, have called on the Bush administration to close the prison, saying it violates international legal standards and harms America's standing in the world.

Gates has said he wanted to close the site, where inmates have been held for years without trial, after he took over from Donald Rumsfeld at the Pentagon in late 2006 and assigned officials to look into the issue.

But the former CIA chief said the effort had run up against several major problems. The first was that the United States had identified about 70 prisoners who could be returned home in theory but not in practice.

"The problem is that either their home government won't accept them or we're concerned that the home government will let them loose once we return them home," he said.

Some 270 detainees remain in Guantanamo Bay and more than 500 have left since the site opened in January 2002, according to the U.S. military.

The Pentagon says some 36 former Guantanamo inmates are "confirmed or suspected of having returned to terrorism." It has released details of 13 men it says are in this category.