The threat to MPs is real. But Michael Gove's empty extremism plans will do nothing to tackle it | Gaby Hinsliff

Politicians should be able to differ in their views without their opponents wishing them dead. Can parliament unite around that principle? Before the 30-year-old MP Zarah Sultana walks into any public meeting, she pauses to record her location and the time. It's a security precaution taken on police advice in case she is attacked, and one that too many British politicians living with death threats will recognise. Like the panic buttons by their beds or instructions to vary the route by which the...