Linky
It's not clear whether these four are actually believed to have participated in the attacks or if they're just being questioned:
Libyan authorities have made four arrests in the investigation into the attack on the U.S. consulate in Benghazi in which the U.S. ambassador and three embassy staff were killed, the deputy interior minister said on Thursday, according to Reuters.
"Four men are in custody and we are interrogating them because they are suspected of helping instigate the events at the U.S. consulate," Wanis el-Sharef, eastern Libya's deputy interior minister, told Reuters.
Here's hoping this is a real lead, not an "arrest somebody to appease the Americans" arrest. Time will tell.