The European Parliament will vote on Thursday to adopt a resolution on measures against the U.S. government over the mass surveillance operation conducted by the National Security Agency.

In a plenary sitting in Strasbourg, numerous members of the European Parliament (MEPs) have called for the suspension of EU-U.S. trade talks, which are currently under way, until the picture surrounding the activities of the U.S.' intelligence activities becomes clearer. 

Also on the cards is the suspension of crucial EU-U.S. agreements, such as the Terrorist Finance Tracking Programme (TFTP) and the Passenger Name Records (PNR), which could see flights suspended between the two continents.

The U.S. government has been embroiled in an international diplomatic crisis over its intelligence agencies' spying on foreign nationals. Former NSA contractor Edward Snowden blew the whistle on a number of programs the U.S. employs to acquire masses of data on citizens around the world, including those in the European Union.