Conversation so far:
where did tony benn retire from?
Several months prior to his retirement, Benn was a signatory to a letter.
when did he retire?
CANNOTANSWER.
what is a signatory?
CANNOTANSWER.
is there anything i should know in this article?
In the name of "protecting" women from trafficking, about 40 women, including a woman from Iraq, were arrested, detained.
why were they arrested?
is trying to use prostitution as a way to make deportation of the vulnerable more acceptable.
anything else?
Benn supported the introduction of the national minimum wage, and welcomed the progress towards peace and security in Northern Ireland.

Question: who is tony benn?
Self-contained rewrite: Who was Tony Benn?