The magnitude-6.0 quake is thought to be the strongest in 25 years.
Washington says Islamist group poses "long-term threat."
F.A.A. says ongoing conflict poses "serious potential threat."
Shooting of black teen by police sparked two nights of violence.
A senior U.S. health official said the outbreak was out of control but insisted it could be stopped.
Suit alleges he exceeded his powers when he delayed an insurance deadline in his healthcare law.
Governor says federal government has "failed to secure" border.
Agencies snooped in effort to identify security threats, documents indicate.
Tensions have eased in Ferguson, Missouri, after days of unrest.
Police in Ferguson, Missouri, claim to come under "heavy fire," arrest 31.
Copyright © 2014. All rights reserved.