Presently, the FAA is funded by both the General Fund of the U.S. Treasury and the Aviation Trust Fund, an account that receives a battery of taxes on tickets, cargo, jet fuel and frequent flyer awards.

FORBES: Magazine Article

In addition, those declarations say Greene had frequently failed to sufficiently fund his trust account to pay invoices for work done on his properties, and that Greene also accused LRA Property officials of stealing money.

FORBES: Magazine Article

Theoretically, Japan has enough savings to do this but in practice the savings don't get intermediated through the banking and life insurance companies and the trust fund bureau and the post office savings account in sufficient quantities to buy these bonds.

CNN: ASIANOW - Asiaweek