The rebels are getting the hang of it (one more unforeseen consequence of the US interventions in Afghanistan and Iraq):
The 401 Syrian [IED] bomb attacks is still nowhere near the 3,000-plus attacks that occurred last year in Iraq, the birthplace of the improvised explosive device, let alone the 16,000 in Afghanistan. But they do underscore how the cheap, easily adaptable weapon has become a fixture of contemporary irregular warfare. And the data also provides a glimpse into how a durable insurgency, one with a significant terrorist component, is using the bombs.
Overall, 49 percent of the Syrian bombs — 197 of the 401 attacks — caused any casualties. That’s a higher success rate than in Afghanistan; although Assad’s forces don’t have the experience (or the gear) that U.S. troops have thwarting bomb manufacturers.