So who's been tampering with my computer?
All chips fail; eventually.
Gevernment? Nobody's worried about a government doing something "useful" with the data.
Not unless the dyes are *sensitive* to such radiation... which means that you shouldn't be walking anywhere near automatic doors because that could be mistaken for "tampering".
You seem to have latched onto the microwave oven as a chip person. First; the RFID chip has an antenna which is how the device is powered; by being "illuminated" with radiation of suitable strength and frequency. The required power is in the microwatt range. Exposing the antenna to radiation of 1000 million times that amount is unlikely to do it a lot of good.
Foreigners.
Imagining that the pbuttport cannot be scanned otherwise is a mistake. Somebody in the queue behind you at the airport may be carrying a pbuttive receiver that records the "access code" equivalent transmitted to "enable" the RFID in the pbuttport.
Your pbuttport can then subsequently be enabled by whoever is in possession of that recording. -- "Bernd Felsche - Innovative Reckoning, Perth, Western Australia ASCII ribbon campaign Economist E*con"o*mist-, n. X against HTML mail One with a ready explanation as to why and postings his last prediction was so wrong