The space shuttle Discovery has completed its final voyage piggybacking a NASA Shuttle Carrier Aircraft from the Kennedy Space Centre in Florida to its permanent retirement home at Smithsonian Air and Space Museum's Udvar-Hazy Centre in Virginia.
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Diane Abbott dismissed the idea of the Labour leader standing down even if the party loses both seats in the upcoming by-elections.
Levels of safety are not high enough in prisons, meaning that reform of inmates cannot take place, Prisons Minister Sam Gyimah has said.
The Government's Prevent campaign is "simply not trusted" by many British Muslims, the Independent Reviewer of Terrorism Legislation said.