WASHINGTON (AP) — The White House’s national security adviser says the Obama administration is hard at work on fulfilling President Barack Obama’s deadline to shut down the Guantanamo detention center for suspected terrorists.But James Jones also says that meeting Obama’s deadline to close the facility by Jan. 22 is proving harder than officials first thought.Jones says it’s clear that Guantanamo must close — because of the symbol it’s come to represent.- – – -Contact The Daily Reveille’s news staff at [email protected]