Zing! As Twitchy reported, the Associated Press’ Twitter account was hacked, and it sent out a tweet claiming explosions at the White House. The Dow immediately plummeted, then rallied.

Asked, and answered. Other Twitter users think they know why:

Double zing!

https://twitter.com/ZachSerrano/status/326757285584044034

https://twitter.com/chrisverks/status/326755893339369472

Heh. Never change, Twitter.