fire, what is called a blue on blue attack. this is the first known actual attack on the coalition and its allies here at the airport, brianna. >> i have to say, sam, john berman here. your reporting has been terrific at the airport. we're lucky to have you there, but boy could it complicate the process of getting people out if the people guarding that gate, that perimeter come under attack. i do understand, sam, you've also been able to speak with people who have gotten out. what have they told you? >> well, john, they are very heartbroken but very relieved to be able to get out. there are 20,000 people here. there are another many thousands pressing up against the only entry point which is partial entry point at the british where they are beginning to swell in numbers there.