- Perfect storm: Higher demand, drop in front-line TSA staff
- Thousands have already missed their flights
- Long lines make consumers consider Pre-Check
(CNN)Think U.S. security lines are bad now?
Wait until everyone starts taking summer vacations.
More than 231 million passengers are expected to fly on U.S. airlines this summer, including more than 30 million travelers on international flights, according to a report from Airlines for America, a U.S. airline trade group, released Wednesday.