SAN DIEGO The chair of the House Armed Services Committee asked the Pentagon today to remove C-N-N reporters embedded with U-S combat units. The network televised portions of a video on Wednesday showing insurgent snipers targeting U-S military personnel. Executives said the tape came to the network unexpectedly through contact with an insurgent leader. Representative Duncan Hunter wrote in his letter that, quote, "C-N-N has now served as the publicist for an enemy propaganda film featuring the killing of an American soldier." San Diego-area Republicans Darrell Issa and Brian Bilbray also signed the letter. C-N-N executives defended their decision to...