U.S. Embassies around the Arab world brace for more protests, as presidential candidates comment on the uprising.
More demonstrations overnight, more tear gas, and more rocks thrown at police. So far, more than 200 have been injured in protests at 11 U.S. compounds.
And despite a call for calm by Egyptâ€™s president, there is concern about more violence today after Friday prayers. "We are going to bring those who killed our fellow Americans to justice," said President Barack Obama
The FBI is dispatching a team from New York to Germany, then Benghazi to investigate.
Libya announced four arrests in the deaths of four Americanâ€™s, and says they're looking for more. "We have to protect our people, we have to protect the Americans," said Libyan Ambassador Ali Aujali.
Secretary of State Hillary Clinton identified the two security guards who were killed: "They were good and great men. They were committed to the cause of building a brighter future for the people of Libya," said Secretary of State Clinton.
In Washington, and on the campaign trail, republicans are pushing the obama administration. "The world needs American leadership," said Mitt Romney/ (R) Presidential Nominee .
"No mixed signals," said the Senate Minority Leader Senator Mitch McConnell (R-KY).
And blame protests on the Arab spring... Gone bad. "What this is all about is American weakness and the president's inability to lead," said Senator John McCain, (R) Arizona.
Here, the FBI is also investigating the man who posted that film that sparked the protests. He was on probation and not allowed to use the internet. But authorities emphasize: this is not about the film's inflammatory content. As they put it: "making a bad movie is not a crime."
Tracie Potts, NBC News.