This is regarding a news item that appeared in newspapers about the latest drone attack in North Waziristan in which 14 people were killed. It seems the CIA-controlled unmanned drone aircrafts have crossed all limits, all rules and all boundaries in Pakistan. And they have been given the passage to fly in, kill as many people as they like (never mind the collateral damage of innocents among them) and return across the border safe. The cowardice of our rulers has brought us to a point where the US is now openly threatening us. About time we shot down one of these invasive, violating, terror-spreading contraptions. -RAQIM HAQUE, Karachi, May 13.