The U.S. State Department announced Friday it was withdrawing more than half its embassy staff from Cuba following “specific attacks” that sickened at least 21 U.S. embassy employees. On some level it was only the latest blow to Obama’s historic rapprochement with Cuba; on another, though, it was a diplomatic break that never happened. Just last week, Rex Tillerson, the U.S. secretary of state, said the U.S. was reviewing closing the entire embassy. As it is, U.S.-Cuba relations remain largely intact.