Mark Serwotka on Question Time
Media playback is unsupported on your device

Union blames cuts for Heathrow queues

The Public and Commercial Services Union leader Mark Serwotka said the recent queues at Heathrow were a result of a cut in Border Agency staff and said he was pleased that his members - including UK Border Agency staff responsible for immigration at Heathrow - are planning strike action next week.

But Work and Pensions Secretary Iain Duncan Smith challenged him over whether the strike has the popular support of union members.

Watch more on the Question Time website.