The space shuttle Discovery prepares to depart from Kennedy Space Centre in Florida on top of a NASA Shuttle Carrier Aircraft.
It is travelling to its permanent retirement home at the Smithsonian Air and Space Museum's Udvar-Hazy Centre, near Dulles International Airport in Chantilly, Virginia.
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There was an "alarming" increase in the number of death sentences issued around the world last year, Amnesty International has said.
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