Jubayer Chowdhury and British trainee doctor Shajul Islam, who were arrested at Heathrow Airport by counterterrorism police, will be tried for their roles in the kidnapping and imprisonment of two Western journalists in Syria by Islamic extremists. Ruksana Begum, the sister of two men jailed this summer for a plot to blow up the London Stock Exchange, was sentenced to one year in jail for possession of terrorist literature.