Gunmen attacked two newspaper photographers Thursday in the drug prohibition-torn border city of Ciudad Juarez, killing one and seriously wounding the other. Mexican journalists are increasingly under siege from drug traffickers seeking to control the flow of information. The Committee to Protect Journalists, a New York-based watchdog group, said in a recent report that at least 22 Mexican journalists have been killed since December 2006, when President Felipe Calderon intensified a crackdown on drug traffickers by deploying tens of thousands of troops and federal police across the country.