ACAPULCO, Mexico — A video purportedly showing the beheading of a drug cartel hit man appeared on video-sharing Web site YouTube, and its makers called on Mexicans to kill more members of the gang. The video appeared as the rival Gulf and Sinaloa gangs wage a bloody battle for trafficking routes and President Felipe Calderon is taking on organized crime with thousands of troops sent to drug-plagued areas. "Do something for your country, kill a Zeta!" read a written message opening the five-minute video posted Friday. The Zetas are believed to be ex-army operatives serving as hit men for the...
