British police scuffled with protesters outside Parliament on Saturday as they arrested more than 400 demonstrators who gathered to defy a ban on the group Palestine Action, which has been deemed a terrorist organisation by the government. Defend Our Juries, the campaign group organising the protest, said 1,500 people took part in the London demonstration, sitting down and holding signs reading “I oppose genocide, I support Palestine Action”. Within minutes, police began arresting the demonstrators, as bystanders chanted “Shame on you” and “Met Police, pick a side, justice or genocide”. There were some scuffles and angry exchanges as officers dragged...