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Conflict in oil-producing regions usually sends oil prices higher. But the cost of oil has actually dropped, despite turmoil in the Middle East. Economists say it's a matter of supply and demand.

A year ago four Americans, including the U.S. ambassador, were killed. Now, according to news reports, U.S. investigators still don't know as much as they wish about the attackers and the Libyan government has blocked efforts to arrest some suspects.

To start with, unlike Moammar Gadhafi's regime when the U.S. intervened in Libya in 2011, the Syrian government still has international allies. As the U.S. considers a strike on Syria, here's a look at some of the key differences between the two situations.

CNN and NBC report the U.S. has charged the leader of a Libyan militia. The charges — the first in connection with the Sept. 11, 2012 attacks — were filed under seal in a New York court.

The international police agency says that it's important to determine if jailbreaks in Iraq, Libya and Pakistan were linked, and to capture the escapees.

It wasn't immediately clear if the incident was related to a day of nationwide protests against the assassination of a prominent political activist.

It's what happens when one party holds the White House and the other at least one congressional chamber. Subpoenas are launched like rockets at an enemy camp.

The role former CIA Director David Petraeus played in creating the discredited U.S. "talking points" about the violence in Benghazi, Libya, that left four Americans dead, including a U.S. ambassador, last year is under new scrutiny, as a Washington Post story suggests that Petraeus sought to shape the resulting memo to favor his agency.

The White House correspondent's story about administration emails created an uproar. Then a key part of it turned out to be wrong.

White House senior adviser Dan Pfeiffer said Republicans are trying to make political hay with the scandals.