that they re going to follow them much more closely, and the reason for this is they want to be able to identify aircraft while they are further away from israel so that the air traffic controllers know that there can be no incoming threat from a plane that is misidentified, semiidentified or perhaps doesn t have its identification beacon on, as is the case with mh-370. israel taking concrete steps. let s be very clear about this. the air traffic controllers in so many countries around the world are in many ways a first line of defense against what could potentially be a civil airliner full of passengers coming towards that country with a potentially bad intent. they re in the front line of security for their countries, wolf. the statement coming from the israeli transportation ministry very significant. i m going to bring jim sciutto into this as well.