Wired News: Euro Scheme Makes Money Talk:
"Another leading privacy advocate is also concerned about the information being collected in databases and used for marketing purposes -- or even lawsuits, health insurance applications and law enforcement.
'This private data can be used against you,' said Katherine Albrecht, founder and director of Consumers Against Supermarket Privacy Invasion and Numbering. Albrecht said she shares EFF's concerns. 'It will essentially eliminate the anonymity of cash.' She outlined a nightmare scenario in which 'it would be possible to track all the cash issued to an individual and invalidate it with a couple of keystrokes' -- a literal case of 'your cash is trash.'"