If you are interfacing with U.S.-based entities or your data crosses servers located in the U.S., you can be sued in a U.S. courts; at best, you'll increase the

If you are interfacing with U.S.-based entities or your data crosses servers located in the U.S., you can be sued in a U.S. courts; at best, you'll increase the complexity of the case and the difficulty collecting on a judgment issued against you, but certainly not to the extent that a major corporation like Facebook would be at all deterred.