American commanders in Iraq who daily contend with threats from two types of roadside bombs -- improvised explosive devices and explosively formed penetrators -- are being asked which of these deadly insurgent weapons is most important to protect against. Adm. Edmund Giambastiani, vice chairman of the Joint Chiefs of Staff, made that request in an April 3 memo to Adm. William Fallon, commander of U.S. Central Command. The memo addresses the requirements for a new fleet of armored vehicles optimized...
