The charity believes children should be removed from the prison system completely, despite improvements since the Youth Justice Board took over control of institutions for under-18s last year.

BBC: Children's prisons are 'sub-standard'

The independent inquiry board set up to investigate the first explosive failure said the flight control system failed because of errors in computer software design.

BBC: Ariane 5: A short history

What the NTSB uncovers regarding the FAA's safety certification program could have important implications for the agency's ability to handle other technology challenges, including the transition to a new air traffic control system and the introduction of unmanned aircraft into the national airspace, said Jim Hall, a former safety board chairman.

NPR: NTSB Probes Safety Testing Of Boeing 787 Batteries