More than 30 states are considering joining an investigaton into Google's unauthorized collection of Wifi data from its Steret View cars.
Connecticut attorney general Richard Blumenthal will lead the investigation.
"Street View cannot mean Complete View - invading home and business computer networks and vacuuming up personal information and communications," said Blumenthal.
"Consumers have a right and a need to know what personal information - which could include emails, web browsing and passwords - Google may have collected, how and why. Google must come clean, explaining how and why it intercepted and saved private information broadcast over personal and business wireless networks."
He said the investigation will consider whether laws have been broken and whether changes to state and federal statutes are necessary.
Blumenthal wants answers from Google on what data was collected and why, as well as how purportedly unauthorized code became part of the program.
"Google needs to describe how code that intercepted and collected unencrypted data transmitted over WiFi networks was inserted into its software," said Blumenthal.
"We want to know who did this, why and how and when Google discovered it. Another concern is whether the data was accessed in any way by Google and if so when and why."
Several states are already looking into the case, along with countries including Australia, Germany and Spain. Yesterday, France announced that it was following suit, with the launch of an investigation from the French National Commission on Computing and Liberty.