The Obama administration is employing a new strategy in its drive to close down the Guantanamo Bay prison. 

Fox News chief intelligence correspondent Catherine Herridge explained this afternoon that administration officials are now highlighting the daily cost of keeping the controversial facility open. 

Speaking at the Aspen Security Conference, deputy national security advisor Lisa Monaco said that it costs $3 million for each detainee each year. 

Monaco argued that the high cost is part of the reason that some Republicans, like John McCain, want the prison to be closed.

Critics, however, say that the $3 million figure is grossly overstated and misleading, based on a Defense Department report last year.

The report puts the overall cost of housing Guantanamo detainees at $397 million per year. Herridge noted that most of the costs (outlined in the graphic above) are fixed, whether there are 16 detainees there or the current number of 116.

Opponents of the administration argue that closing Guantanamo is part of a push by the president to keep a 2008 campaign promise. 

House Homeland Security Committee Chairman Michael McCaul (R-Texas) brought up the fact that two former Gitmo detainees were recently arrested in Belgium and accused of recruiting jihadists to fight in the Middle East.

President Obama has threatened to veto the defense budget if the legislation continues to block the closure of Guantanamo.

Watch the report below.