Does my hon. Friend agree that one way to help the public housing sector is to stimulate the private rented sector? Although I welcome everything that the Government have done to that end, I agree with the hon. Member for Sheffield, Attercliffe (Mr. Betts) that very often rents in the private sector are far too high. One way to bring them down and to make them more affordable would be to introduce a housing tax allowance of about the same value as mortgage interest tax relief. When I suggested that to a Treasury Minister earlier this week, it was not ruled out of court. Will my hon. Friend join this lobby to try to persuade the Treasury to consider such a tax allowance which, I am sure, would do a great deal to make private rented accommodation more affordable?