Let a real, live US Senator tell you how it is:

“This is Exhibit A of why the homeland is the battlefield.” Recalling Sen. Rand Paul’s filibuster, Graham noted that he took to the Senate floor specifically to object to Rand’s notion that “America is not the battlefield.” Graham said to me, “It’s a battlefield because the terrorists think it is.” Referring to Boston, he observed, “Here is what we’re up against,” and added, “It sure would be nice to have a drone up there [to track the suspect.]” He also slammed the president’s policy of “leading from behind and criminalizing war.”

It's like George W. Bush is still in office in Graham's world:

What an awful American this man is.