PRICE TO SNOOP: Surveillance fees charged to the government in secret by technology and phone companies can vary wildly, but it's a multimillion-dollar market.

LET US KNOW: Civil liberties groups want businesses to charge. They worry that government surveillance will become too cheap as companies automate their responses. But privacy advocates also want companies to be upfront about what they charge and alert customers after an investigation has concluded that their communications were monitored.

BOTTOM LINE: The industry says it doesn't profit from the hundreds of thousands of government eavesdropping requests it receives each year.