'Nightline' Daily Line, Sept. 13: Protests Spread to Sana'a, Cairo
6:47 p.m. ET: ABC's Dan Harris tweets:
4:16 p.m. ET: UPDATE: A U.S. intelligence bulletin warned today that the violent outrage aimed at U.S. embassies spawned by a movie mocking the Prophet Mohammed could be spread to America by extremist groups eager to "exploit anger."
Read the developing story HERE
2:36 p.m. ET: It's a bird, it's a plane, it's… a missle? Or two…
ABC's Clayton Sandell reports that the bright trails of two missiles on a collision course lit up the early morning western sky Thursday, prompting concerned calls to police and TV stations across at least five states.
12:40 p.m. ET: BREAKING: The Federal Reserve announced its highly-anticipated quantitative easing, or its so-called QE3, purchasing additional agency mortgage-backed securities at a pace of $40 billion per month in another effort to stimulate the struggling economy.
10:02 a.m. ET: DEVELOPING: Outrage over the film "Innocence of Muslims" that denigrated the Prophet Mohammad spread Thursday to Yemen, where thousands of protesters rushed the U.S. Embassy in Sana'a, while more demonstrations erupted outside the U.S. Embassy in Cairo.