Allies offered $854 million in cash and in oil that was to be sold for cash. But only $40 million has been used so far for disaster victims or reconstruction, according to U.S. officials and contractors. Most of the aid went uncollected, including $400 million worth of oil. Some offers were withdrawn or redirected to private groups such as the Red Cross. The rest has been delayed by red tape and bureaucratic limits on how it can be spent.
In addition, valuable supplies and services -- such as cellphone systems, medicine and cruise ships -- were delayed or declined because the government could not handle them. In some cases, supplies were wasted.
Overall, the United States declined 54 of 77 recorded aid offers from three of its staunchest allies: Canada, Britain and Israel, according to a 40-page State Department table of the offers that had been received as of January 2006.
I think that the US Government did this for either two reasons: They either don't want their pride hurt, or they consider accepting the aid is "unmanly" considering that the US is the so-called last "superpower." With this revelation, the US should not be considered a superpower anymore.
Update!: This is also posted on Americablog.