Grinning ball bearing bomb suspect gives mum the thumbs up

  A student accused of planting a ‘ball bearing bomb’ on a London tube train grinned and gave his mum the thumbs up when he appeared in court today (thurs). Damon Smith, 19, allegedly left a ‘viable improvised explosive device’ on a Jubilee Line Underground train at North Greenwich Tube station last Thursday morning (20). The black Adidas bag containing the bomb is thought to have been left on the train somewhere between Southwark and London Bridge. Two members of…