NEW YORK — More than 800 first responders have staged a disaster drill at the World Trade Center PATH station. The mock explosion happened Sunday morning in the PATH tunnel linking lower Manhattan to New Jersey. Hundreds of firefighters, police officers and members of other New York City agencies took part in the drill. They secured the scene and then brought the pretend victims out of the tunnel. The 150 volunteers playing victims wore makeup simulating blood and grime. Officials bought TV ads and plastered train stations with posters to warn downtown residents of the drill.