Statewatch published an article on European plans to give power to American agencies to search European databases, to identify people posing “a threat to US security”. Statewatch refers to a proposal by the Commission.

There is already massive data-sharing taking place, Statewatch reports:

Massive expansion in data-sharing
Under the VWP, countries whose citizens can travel to the US without a visa already have to let US agencies search their police databases, to see whether travellers have been involved in terrorism or serious crime.
The new plan would massively expand this kind of data-sharing.
The Commission’s proposal for an agreement with the US would allow searches for “security screenings and identity verifications relating to border procedures and applications for visa.”
The agreement should also cover the “prevention, detection, investigation and prosecution of crimes and terrorist offences,” says the proposal.
This suggests a massive broadening of the scope from what is currently in VWP agreements, which relate to serious crime – not simply “crime” in general.

More on this site on this topic in the articles on European databases.