works, but also we have better and deeper understanding on how ours works because we didn't disclose all the technical details for safety reasons. >> that's a key point here. they did not make public everything that they know for the obvious security reasons. but the reason why he's doing this, basically saying to programs like the faa, you need to take a look into the airlines. you need to take a better look at your flight management system because they could potentially be vulnerable, don. >> lisa sylvester, thank you. we appreciate it. we have got some breaking news that we want to tell you about here on cnn again. some breaking news we want to tell you about here on cnn. we're getting word that two people have been shot at the new river community college in christianburg, virginia. that's according to our affiliate wsls and wdvj. both of the affiliates are