Im Gegensatz zu den weltweit größten Goldreserven, die in der Federal
Reserve Bank of New York eingelagert sind und zu einem Großteil aus Gold
bestehen, das im Eigentum verschiedener ausländischer Staatsbanken (unter
anderem der Deutschen Bundesbank) und internationaler Organisationen (vor
allem des IWF) ist, lagert in Fort Knox ausschließlich Gold, das sich im
Eigentum der Vereinigten Staaten befindet. [/i]

Quelle: https://de.wikipedia.org/wiki/Fort_Knox

Das heißt, die 4580 Tonnen gehören auf jeden Fall den USA, wenn sie noch
da sind-
Hier es gibt aber den Hinweis, daß der größte Teil dieses Goldes, der
bei der FED lagert, nicht den Amis gehört, was eine andere Aussage ist,
als wie zuvor.

Ich kann nur ein kleines Detail bezüglich der USA klären:

Das "Gold der USA" gehört den USA und nicht dem FED. Auf das Gold der USA
sind "Gold-Zertifikate" ausgestellt, die das FED verbucht. Allerdings
berechtigen diese auf keine Ausgabe diese Goldes. Das Gold der USA ist so
rechtlich hinter einem "Firewall".

Viel besser als mein Text ist der Original-Laut:

- The Federal Reserve does not own gold
- Treasury issued gold certificates to the FED
- Gold certificates do not give the FED any right to redeem the certificates for gold

http://www.federalreserve.gov/faqs/does-the-federal-reserve-own-or-hold-gold.htm
The Federal Reserve does not own gold.

The Gold Reserve Act of 1934 required the Federal Reserve System to transfer ownership of all of its gold
to the Department of the Treasury. In exchange, the Secretary of the Treasury issued gold certificates to
the Federal Reserve for the amount of gold transferred at the then-applicable statutory price for gold
held by the Treasury.

Gold certificates are denominated in U.S. dollars. Their value is based on the statutory price for gold
at the time the certificates are issued. Gold certificates do not give the Federal Reserve any right to
redeem the certificates for gold.

The statutory price of gold is set by law. It does not fluctuate with the market price of gold and has
been constant at $42 2/9, or $42.2222, per fine troy ounce since 1973. The book value of the gold held
by the Treasury is determined using the statutory price.

Although the Federal Reserve does not own any gold, the Federal Reserve Bank of New York acts as the
custodian of gold owned by account holders such as the U.S. government, foreign governments, other
central banks, and official international organizations. No individuals or private sector entities
are permitted to store gold in the vault of the Federal Reserve Bank of New York or at any Federal Reserve Bank.

A small portion of the gold held by the U.S. Treasury (roughly $600 million in book value)--about five
percent--is held in custody for the Treasury by the Federal Reserve Banks, as fiscal agents of the United
States. The vast majority of this gold is located in the vault at the Federal Reserve Bank of New York, and
a very small portion is on display in several Federal Reserve Banks. The remaining 95 percent of U.S.
Treasury gold ($10.4 billion in book value) is held in custody for the Treasury by the U.S. Mint.