Williams 'would take Brown advisory job' if she keeps her independence and can still criticise government

This came from the BBC just as I was posting on this subject an hour ago:

Liberal Democrat peer Shirley Williams has said she is willing to be Gordon Brown's nuclear proliferation adviser "subject to conditions".She told the BBC she would accept the prime minister's offer, as long as she is allowed to retain her independence.She also said she wanted the "right to criticise government policy".