Citizens and security are too important to be used as bargaining chips | Letters

Theresa May’s letter to Donald Tusk triggering article 50 (Report, 30 March) makes disturbing references to future co-operation with the EU on fighting crime and terrorism.Specifically, she implies that the willingness of the UK government to continue to cooperate fully with the EU on security will be dependent on whether a satisfactory deal can be done on future trading arrangements and other matters post-Brexit.In effect, she is trying to use the safety of both UK and EU citizens as a ba