Should President Obama have come right home after the attacks in Brussels?

President Barack Obama, right, talks to Cuba's President Raul Castro before boarding Air Force One to fly to Argentina, as he leaves Havana, Cuba, Tuesday, March 22, 2016. Capping his remarkable visit to Cuba, Obama declared an end to the "last remnant of the Cold War in the Americas" and openly urged the Cuban people to pursue a more democratic future. At left is Castro's grandson and personal assistant Raul Guillermo Rodriguez Castro.