Mitt Romney reflects on the anniversary of Osama bin Laden’s death. CNN’s Jim Acosta reports

CNN’s John King recounts his first experience on a secret trip to a war zone.

President Obama makes a surprise visit to Afghanistan and speaks to troops at Bagram Air Base.

Sen. John McCain spoke to CNN’s Dana Bash about President Obama’s surprise visit to Afghanistan today.

CNN’s Dana Bash gets exclusive reaction from GOP Sen. John McCain about President Obama’s surprise trip to Afghanistan.