EU officials met recently with their U.S. counterparts to discuss an extension of the US Visa Waiver Program, which at the moment allows nationals from 15, mainly western EU members, of the 25 member strong union to enter the United States without a visa.
In the case of Greece, Estonia, Latvia, Lithuania, Poland, the Czech Republic, Slovakia, Hungary, Cyprus and Malta, their citizens must still apply for a visa. Still, EU officials say a solidarity clause might be invoked, demanding visas for U.S. citizens regardless of which EU country they would like to travel to.