Attackers , disguised in U.S. Army uniforms , tried to blow up U.S. Army aircraft , source said . U.S. Marines royal , a helicopter pilot , is deployed to Karbala . Adam N. Wojack was about a mile and a half from attack , source says .
Attackers , disguised in U.S. Army uniforms , tried to blow up NATO aircraft , source said . British royal , a helicopter pilot , is deployed to Afghanistan . Prince Harry was about mile and a half from attack , source says .