All of the estate tax which some are looking to end should be re-dirrected to pay off the national debt since it was their debt as well.
A law would need to be in place though that would restrict the politicians from growing the debt or taking the estate tax revenue for other puposes (outside of war maybe).
Speak for yourself, but keep your mitts off my private property. Typical lefty approach. Doing good deeds with other people's money.