The Deficit Commission setup by US President Obama recommended changes in the tax codes including elimination of the deduction for mortgage interest. It calls for limiting spending on health care, gradually raising the retirement age, and lowering the tax rate. The commission identified $200 billion in discretionary spending cuts, with half coming from defense spending. The federal gasoline tax rate would increase from 2013, increasing by 15 cents a gallon at that point. It would gradually increase the retirement age to 68 by 2050. And combine a reduction in benefits with an increase in taxes on wealthier senior's benefits. It seeks to slow Medicare growth to control health care spending. Other proposals. A freeze on salaries and bonuses of federal employees for three years, to save $15 billion by 2015. And proposes cutting the federal work force by 10% to save additional $13 billion by 2015.