Suspect in Litvinenko killing claims Britain tried to recruit him

The transcript discusses the complex situation surrounding Litvinenko, who is believed to have become an agent out of control of intelligence services, leading to his elimination. It explores the interest of British intelligence in FSB activities and the recruitment efforts targeting the speaker. The British aimed to gather compromising information on President Putin and his family. Litvinenko was initially recruited, and following his advice, Berezovsky handed over security council documents to the British, becoming an MI6 agent. Berezovsky's asylum and citizenship process in the UK became straightforward.

What was the relationship between Litvinenko and Berezovsky according to the text?

What was the process for Berezovsky to obtain asylum and citizenship?