Guantanamo Bay Naval Base geography of Windward Point is such that there are many coves and peninsulas along the bay shoreline providing ideal areas for mooring ships. "Cactus Curtain" is a term describing the line separating the naval base from Cuban-controlled territory. After the Cuban Revolution, some Cubans sought refuge on the Guantanamo Bay Naval Base. In the fall of 1961, Cuban troops planted an barrier of "Opuntia" cactus along the northeastern section of the fence surrounding the base to stop Cubans from escaping Cuba to take refuge in the United States. This was dubbed the "Cactus Curtain", an allusion to Europe's Iron Curtain,
Guantanamo Bay detention camp or investigations; 30 detainees from Yemen were designated for "conditional detention" due to the poor security environment in Yemen; 126 detainees were approved for transfer; 48 detainees were determined "too dangerous to transfer but not feasible for prosecution". On 6 January 2011, President Obama signed the 2011 Defense Authorization Bill, which, in part, placed restrictions on the transfer of Guantanamo prisoners to the mainland or to foreign countries, thus impeding the closure of the facility. In February 2011, U.S. Secretary of Defense Robert Gates said that Guantanamo Bay was unlikely to be closed, due to opposition in the Congress. Congress