The WaPo says Iraqi insurgents using sticky IEDs.
Iraqi insurgents are increasingly using magnetically attached bombs known as "sticky IEDs" to assassinate mid- and low-level Iraqi officials, Iraqi and U.S. officials said.
Rigged with magnets so they will adhere to the undersides of automobiles and detonated by remote control or with timers, the bombs have been used in Iraq sporadically since 2004. This year, U.S. military officials said, they have investigated roughly 200 cases involving magnetic bombs, and Iraqi officials said they have noted an increase in assassination attempts in which attackers use guns equipped with silencers.