Luke PiWalker writes "The number of RFID tags produced worldwide is expected to increase more than 25 fold between 2005 and 2010, reaching 33 billion, according to market research company In-Stat. Total production of RFID tags in 2005 reached more than 1.3 billion, according to a recent report. RFID production will vary widely by industry segment for several years -- for example, RFID has been used in automotive keys since 1991, with 150 million units now in use, a quantity that greatly exceeded other segments until recently, according to In-Stat. "By far the biggest RFID segment in coming years will be supply chain management," said Allen Nogee, In-Stat analyst, in a statement. "This segment will account for the largest number of tags/labels from 2005 through 2010." RFID has obvious privacy flaws, why is the world pointed in the direction of RFID?"