“ISIS is planning a ‘spectacular’ attack on British soil—and unprecedented numbers of women and teenagers are being arrested to stop one, the UK’s top anti-terror officer warned today. Scotland Yard Assistant Commissioner Mark Rowley has said the terror group is ‘trying to build bigger attacks’ around the world and the UK is one of its top targets. After the devastating series of suicide attacks on Paris last year where 130 died, a similar plot in Britain is a ‘natural next step’ for the terror group, he said.