A new system is causing long waits at immigration checkpoints across Europe. Nicolas Economou/NurPhoto via Getty Images The European Union has rolled out a new electronic border system for travelers arriving in Europe. Some people have reported hourslong queues, and the busy summer travel season could make it worse. Here's what to know about the new Entry/Exit System, or EES. Planning a Euro summer? It might not get off to the easiest start. Last month, the European Union fully rolled out its