An attempt at breaking down who Syria's rebels are, and what they want.
At an event in Dallas, Robert Gates and Leon Panetta expressed their concerns about President Obama's decision last month to ask Congress to vote on military action against the regime in Syria.
In Syria, Al Qaeda-linked rebel groups have been battling secular-leaning rebel groups near the Turkish border.
Polls show a large majority of Americans back Russia's deal on Syria's chemical weapons, while a solid majority think it will fail. That contradiction works as long as US interests aren't at stake.
Turkey is openly opposed to the Assad regime and has supported rebel groups, allowing weapons to cross the Turkish border to Assad's chagrin.