The EU has introduced the “entry/exit system” (EES) across Europe, an automated system to track when foreigners enter and exit countries, replacing stamping passports. While introduced to make traveling easier, CNN's Clarissa Ward shows the reality as passengers are waiting hours in lines and missing their flights. An earlier version of this video misstated which passport holders are experiencing long lines and delays due to new EES rules. It is non-European Union passport holders.

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Here is what’s changing for your next flights.