"The Down Payment to Protect National Security Act of 2013 would prevent a further round of cuts in Fiscal Year 2013, beyond the $46 billion reduction already imposed as part of the President's budget-driven defense strategy, from hitting our military as a result of sequestration. The President's first round of cuts alone significantly reduced military end strength, impacted force readiness, and jeopardized our nuclear deterrent. Another round of cuts required as a result of sequestration would devastate our Armed Forces. [...] This legislation would pay for one year of defense and non-defense sequestration by requiring a reduction in the federal workforce through attrition and a pay freeze for members of Congress. This offset was originally part of the Supercommittee deliberations and was recommended by the President's fiscal commission."
U.S. House of Representatives Committee on Armed Services: http://armedservices.house.gov/