I think it's more accurate to say that it was foiled because of good old police work. An undercover investigation and a sting (plus a large amount of his own st

I think it's more accurate to say that it was foiled because of good old police work. An undercover investigation and a sting (plus a large amount of his own stupidity) is what brought the guy in. The embedded RFID stopped the high value chips ($25,000) from being cashed in, but there were still plenty of lower denominations that could have been used. Interestingly enough, after the heist the Bellagio replaced ALL the chips on the floor with a complete new set. It would have been pretty suspicious when somebody strolled in with $25,000 chips...even without the RFID at that point.