Chemical weapons and a border bombing

While the focus on the Syrian chemical weapons is losing a bit of steam in the international press the conflict within Syria continues to rage. Regime battles against rebel brigades are being reported across much of the country. In an interesting development yesterday a car bomb detonated at a border crossing into Turkey (Bab al-Hawa) killing seven people. The bomb detonated at an Islamist brigade checkpoint on the Syrian side. It's still not clear which group coordinated the attack; however, it may be linked to an incident on Monday. Turkish forces shot down a Syrian helicopter, which the Turks allege, had crossed into Turkish air space. The Syrians, naturally, deny this was the case and have lambasted the Turkish aggression. Here's the analytical long shot. . . The bombing was related. It is possible that Syrian intelligence activated an anti-Turkish militant cell in the north. The bombers were aiming to deliver the bomb to a Turkish border town when the vehicle was stopped. Fearing they'd be found out, they detonated the device. Alternatively, another rebel group (there are many, and most don't like each other) may have conducted the attack against an opponent. Any which way you look at it, the incident serves to highlight one major point. Syria is not a friendly place at the moment.