Hi all, I've just returned from a trip to the US, California... Disneyland.....Sequoia and Yosemite Nat. Parks. Incredible! While in Anaheim, I cracked several US $50's and $100's. I was provided with 10 x US $100's at a Sydney Airport currency exchange. I wanted to enhance my foreign experience using local currency. I spent thousands of course...the rest on my card! Here in Australia we have some countefeit currency but not enough, nor of a quality to warrent currency scanners in stores. "I'm sorry we can't accept that." The keeper says after scanning my note. "It's probably been through the wash too many times or something." "Or counterfeit?" I say. "Nah..just the washing machine. Pass it off at Disneyland, they don't use scanners." And right she was. This occured a number of times. 4 x $50's were knocked back, they were given to me as change in various retail outlets in the US, and 2 of the $100's..from the currency exchange! Despite this assurance... "Regardless of the level of concern, the figures for the incidence of counterfeiting were remarkably consistent: most commercial banks report detecting no more than about one counterfeit note for every 10,000 notes they handle." From...http://www.federalreserve.gov/boarddocs/RptCongress/counterfeit/default.htm" [Broken] I can't help but figure there is alot they don't know about. Has anyone had a similar experience or particular knowledge in this area? Thanks.