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BIRMINGHAM, ENGLAND - SEPTEMBER 19: A man wearing socks and sandals listens as Deputy Prime Minister and leader of the Liberal Democrats Nick Clegg speaks during a Question and answer session at the Liberal Democrat Autumn Conference at the International Convention Centre (ICC) on September 19, 2011 in Birmingham, England. Mr Clegg anwered question on a range of topics including tuition fees, housing and youth employment. (Photo by Dan Kitwood/Getty Images)

BIRMINGHAM, ENGLAND - SEPTEMBER 19:  A man wearing socks and sandals listens as Deputy Prime Minister and leader of the Liberal Democrats Nick Clegg speaks during a Question and answer session at the Liberal Democrat Autumn Conference at the International Convention Centre (ICC) on September 19, 2011 in Birmingham, England. Mr Clegg anwered question on a range of topics including tuition fees, housing and youth employment.  (Photo by Dan Kitwood/Getty Images)