As concerns about rising Islamophobia in Britain grew amid anti-Muslim protests and attacks targeting mosques, authorities made a 10th arrest in last week's knifing death of a British soldier. Armed police arrested a 50-year-old man on a street in the town of Welling in southeastern England. The man's connection to the case was unclear, but like the other nine suspects, he was arrested on suspicion of conspiracy to commit murder. Three of those arrested are still in custody, including the two men who allegedly hacked to death British soldier Lee Rigby. Two were released without charge, and five were released...