you can check out any big financial portal (Bloombergs, CNBC, etc) and they will all have similar graphs (only picked this 1 as it is easy to read), FED needed money for QE1, QE2 and QE3 which it didn´t have. Another "alarming" fact is that Germany who has stored most of its gold reserves at Fort Knox is starting to transfer that back to Germany (they "kept" it there after WW2), this will either prove or disaprove the rumor that Fort Knox is empty.