A tightening of security at UK airports may remain in place on a permanent basis

A tightening of security at UK airports may remain in place on a permanent basis in the face of a new extremist bomb threat to transatlantic aircraft, Nick Clegg has said as he warned of the dangers posed by a "medieval, violent, revolting ideology". Speaking after the government announced an increase in airport security amid fears in the US that terrorists in Syria and Yemen were developing explosives that could be smuggled on to planes, the deputy prime minister said the new measures would not be temporary. "I don't think we should expect this to be a one-off temporary thing," Clegg said on his weekly LBC phone-in. "We have to make sure the checks are there to meet the nature of the new kinds of threats. Whether it is forever – I can't make any predictions. But I don't want people to think that this is just a sort of a blip for a week. This is part of an evolving and constant review about whether the checks keep up with the nature of the threats we face."