"It became clear that we failed to fulfil what I consider one of our most important responsibilities - to communicate our intentions clearly, " he wrote.

BBC: Instagram drops policy changes after user backlash

If there is any reasonable one, we will fulfil.

BBC: Bangladesh PM Sheikh Hasina rejects blasphemy law

The UN patrolled the zone at one time but pulled out, unable to fulfil its mandate.

BBC: Eritrea profile

All of which suggests that Boris Johnson, London's mayor, has his work cut out to fulfil his pledge that, by the end of 2012, no one will live on his city's streets, and no one landing there will sleep out for a second night.

ECONOMIST: Helping the homeless

This is likely to lead to an evolved ATV, one that keeps its core rendezvous and docking technologies but is updated to fulfil new tasks.

BBC: Johannes Kepler freighter docks with space station