"U.S.-EU cooperation against terrorism has led to a new dynamic in U.S.-EU relations by fostering dialogue on law enforcement and homeland security issues previously reserved for bilateral discussions. Contacts between U.S. and EU officials on police, judicial, and border control policy matters have increased substantially since 2001. A number of new U.S.-EU agreements have also been reached; these include information-sharing arrangements between the United States and EU police and judicial bodies, two new U.S.-EU treaties on extradition and mutual legal assistance, and accords on container security and airline passenger data" (Quoted from paper)