President Obama: "the American people refuse to be terrorized"

President Obama gave a briefing to press at the White House this morning in which he said that it is not yet known if a group or individual is behind the attacks on the Boston Marathon. He did call the Boston bombing an act of terror today, less than 24 hours after the explosions.

Said Obama: "This was a heinous and cowardly act, and, given what we now know about what took place, the FBI is investigating it as an act of terrorism...We will find whoever harmed our citizens, and we will bring them to justice. We also know this: the American people refuse to be terrorized. Because what we saw in the aftermath of the explosions were stories of heroism and kindness and generosity and love."

Also in President Obama's comments, he praised our first responders:

"If you want to know who we are, what America is, how we respond to evil - this is it: selflessly, compassionately, unafraid."

(source)