Up to two thirds of people claiming incapacity benefit are not entitled to the state handout, the Government's new welfare adviser warns today. Welfare is a mess, says adviser David FreudYour view: Who benefits from the UK’s benefits system?David Freud, an investment banker hired by James Purnell, the new Work and Pensions Secretary, said the disability tests used to award state aid were "ludicrous" and could be costing billions of pounds. Mr Freud's stark assessment, in an interview for today's Daily Telegraph, is likely to anger many Labour Left-wingers concerned about Gordon Brown's apparently tough stance on welfare reform. But...