‘Sister of Terror’ laughed about Westminster attack

A teenager accused of plotting a suicide ambush on the British Museum with her sister was recorded laughing about the victims of the Westminster Bridge attack. Safaa Boular, 18, giggled with her mother as she mocked the dead and said she wanted to take some flowers to the site where five people died on March 22, 2017. The two women were watching news coverage of the incident and were taped on an MI5 bug, the Old Bailey heard. Boular can…