A truck tire hits a flagged wire, a roadside bomb explodes, a handsome private with shredded leg screams in agony. In the bloody chaos of the moment, his soldier buddies panic. One pukes. Stop the cameras! Sir! "People don't act like that when an i.e.d. (improvised explosive device) goes off. They make us look like idiots. We're not idiots!" said a first lieutenant previewing "Over There," the new TV series from Steven Bochco ("NYPD Blue," "Hill Street Blues") that debuts tomorrow night on FX cable network. It's set in Iraq, hyped as "true to life" by producers and hailed by...