stephanie? >> let's turn to keir simmons at heathrow airport. you've got tons of americans desperately trying to get out. tell us what it's like. >> that's right. the good news, i guess, steph, you can see and potentially hear behind me is that the aircraft, one of the world's busiest airports, are still taking off. still landing. but i've been talking to americans who have stories that are being repeated across europe. let me give you one example. a couple from california who were in portugal, got woken up in the night by president trump's announcement, his mom texting to tell him you need to get out of there. they got up, packed their bags, booked a flight. got here to london. now they're stuck here in a hotel in london trying to get a seat on one of these planes. i sat with them while they tried to call united. they couldn't get united on line and were left on for two hours. the announcement said you'll have to wait two hours just to get through. united airlines telling us in a statement that they are being flooded with calls, but they are he