Associated Press in Washington, September 16, 2012

The US state department has ordered non-essential staff from its embassies in Sudan and Tunisia to leave with their families and warned its citizens against travelling to the two countries owing to concerns over rising anti-American violence.

"Given the security situation in Tunis and Khartoum, the state department has ordered the departure of all family members and non-emergency personnel from both posts, and issued parallel travel warnings to American citizens," said a spokeswoman, Victoria Nuland. [....]

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U.S. Is Preparing for a Long Siege of Arab Unrest
By Peter Baker and Mark Landler, New York Times, September 15, 2012

WASHINGTON — After days of anti-American violence across the Muslim world, the White House is girding itself for an extended period of turmoil that will test the security of American diplomatic missions and President Obama’s ability to shape the forces of change in the Middle East.

Although the tumult subsided Saturday, senior administration officials said they had concluded that the sometimes violent protests in Muslim countries may presage a period of sustained instability with unpredictable diplomatic and political consequences. While pressing Arab leaders to tamp down the unrest, Mr. Obama’s advisers say they may have to consider whether to scale back diplomatic activities in the region [....]