Panetta said Libyan officials have made a "strong effort" to improve security.
Read more...Obama said those killed were working to bring freedom and dignity to everyone.
Read more...U.S. embassies throughout the Middle East and beyond have become the target of at least 20 protests.
Read more...The drones have come after U.S. Marines' deployment to Libya.
Read more...Officials have determined that the attack was planned in two-parts.
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