The State Department is mourning those killed in the violence in Libya, while trying to calm the storm the anti-Islamic video has caused — add to that, standing by free-speech principles and facing an ever-skeptical audience in the Arab world.

After the U.S. Ambassador and three other Americans were killed in Benghazi, Libya, questions are being raised about the security at the consulate and whether there should have been a more robust force to protect Americans there.

Melissa Block speaks with Hadeel Al-Shalchi, Reuters' Libya Correspondent, about the scene on the ground in Benghazi after the attack this week that killed four U.S. diplomats.

Audie Cornish speaks with Iona Craig, who is covering Yemen for The Times of London and USA Today. Craig describes the scene when protesters breached the security wall of the American Embassy in Yemen's capital. None of the protestors she spoke with actually saw the anti-Islam movie they cite as the instigating the protests.

In Egypt, protesters clashed with police near the U.S. Embassy for the third day in a row Thursday. The Cairo protests were fueled by anger over an anti-Islam film produced by an Egyptian Christian living in California. But is the anger being displayed outside the embassy widely felt by Egyptians?

A scientist discovered the first lesula specimen being kept as a pet in the Democratic Republic of Congo in 2007.