sheila macvicar is next with "inside story." have a great night. >> it was an historic moment, 88 years in the making. president obama speaking to the government and citizens of communist cuba on the island's capital city. the first sitting president to visit cuba since calvin coolidge, back in 1978. so with when all of the ceremonies, photo ops and speeches were over, was it all just political theater? or did the president really usher in a new era?

sheila macvicar. you can watch more of her reporting on "america tonight" at 6:30 pacific time. >>> this morning, president obama said that the b bombings are another remind that are the world needs to unite in the fight against terrorism. the latest on the u.s. reaction to the terrorism attacks. >> reporter: president obama began his much anticipated speech to an old enemy for a pledge as a close ally. >> we'll do whatever is necessary to support our friend and ally, belgium, to bring to justice those responsible. >> reporter: mr. obama called for a unified fight against the scourge of terrorism. >> we will around the world. >> reporter: the white house release this photo of national security adviser, susan rice, in an early-morning call with top security aids. earlier, mr. obama called charles michelle and offered his condolences. >> as our country has always done, we must confront this threat together. we must defend democracy and defeat terror >> reporter: testifying before congress, secretary ash