A Pakistani man whose father was killed by a US drone is to appeal a judgement seeking to determine the legality of UK intelligence sharing in relation CIA drone strikes.

The legal charity, Reprieve, has asked Barack Obama for a guarantee that an international protest march through North West Pakistan will not be hit by CIA drones.

Olympic sponsor GE faces calls to honour the ‘Olympic Truce’ by acting to stop the use of its drone components in strikes carried out by the US in Pakistan and Yemen.

The London arms fair has opened to a storm of controversy, with protests outside Parliament, the offices of arms companies and at the gates to the event itself.