What seems most likely is that the attack on the Russian ambassador was carried out by a group that actually has been targeted by Russian forces in Syria.
If the move enables al-Nusra to better embed itself within the Syrian opposition, it will make it easier for Turkey to justify support for the group.
Although the commission expressed concerns about multiple individuals, only one employee of the Saudi government was implicated in the plot investigation.
With the United States and Turkey ruling out putting boots on the ground in Syria, who are the effective players and are they viable partners in the fight against ISIS?
The severity of the threat is clear: influxes of foreign fighters are joining the Islamic State in Syria and Iraq and may return as a threat to the homeland.
Yemen appears to be on the brink of failure and hundreds of millions of dollars of U.S. military equipment might be fanning the flames.
BPC will host a discussion of recent events in Yemen and how they will affect U.S. counterterrorism efforts and regional dynamics.