ISHAWAKA, Ind. - Attacks on Humvees in Iraq are reverberating in this small Indiana town, where a production line is gearing up to sate a growing hunger for these vehicles and to save soldiers' lives. The military, though, does not want just any Humvees. Too many soldiers have faced machine-gun or grenade attacks in vehicles clad in fiberglass and aluminum, often with fatal consequences. So the Army, realizing that it had not ordered enough armored vehicles, sent out an urgent call for more. The AM General plant here is doing its best to comply. One recent day, an...