MANHATTAN -- War's sobering realities never reached American TV screens during the recent U.S.-led invasion of Iraq, according to NBC News correspondent Ashleigh Banfield. "We didn't see what happen when Marines fired M-16s," Banfield said during a Landon lecture appearance Thursday at Kansas State University. "We didn't see what happened after mortars landed, only the puff of smoke. There were horrors that were completely left out of this war. So was this journalism? Or was this coverage?"On the other hand, she said, many U.S. television viewers were treated to a non-stop flow of images presented by "cable news operators who...