Greenpeace Russian oil protest arrests 'worth it'
27 December 2013 Last updated at 17:19 GMT
The arrest and detention of Greenpeace demonstrators over an Arctic oil drilling protest in Russia was "worth it", according to a freed activist.
Speaking on his return to the UK at London's St Pancras railway station Anthony Perrett told BBC News that conditions had been difficult during the 100 days in detention.
Mr Perrett was among 30 people held on hooliganism charges and released under a new Russian amnesty law.