From Air Force One (en route to Trinidad)

(AP) — A White House spokesman says Cuban leaders can release political prisoners and stop skimming money right now if they are serious about working with the United States.
 
White House spokesman Robert Gibbs told reporters Friday aboard the president's airplane that officials were struck by Cuban President Raul Castro's openness to admit change might be needed in relations with the United States.
 
Gibbs says President Barack Obama will address Castro's comments during his opening remarks at the Summit of the Americas in Trinidad and Tobago.  Obama landed mid-afternoon on the two-island nation.