MPs Expenses

After today's Budget by George Osborne of The Coalition, I noticed this little gem by Anne Redstone, Professor of Law, Kings College, London.
"Among the Budget paperwork is a document reminding us that MPs receive their home-to-work travel tax free, unlike the rest of the population.

If a business pays for an employee's travel to the office, this reimbursement is taxable.
Salt is rubbed in the electorate's already raw wounds by the statement that the government will "continue to reimburse some spouse travel" - also on a tax-free basis.
This Budget would have been a good time to demonstrate that we are all in this together, and put our representatives in the same tax position as everyone else."

After last year's expenses exposure, shouldn't the MPs cease all these petty fiddles?