domestic flights and it has nothing to do with the fourth of july weekend, according to officials we've been speaking with. pamela and kate. >> when you travel overseas often times each country has different procedures for their screening. how is the tsa going to manage implementing those measures overseas because you are dealing with different nations? >> that's right. tsa doesn't screen at foreign airports, but what tsa can do is say you cannot fly into the u.s. unless you put these new security measures into place. so we've learned that tsa is working with these specific airports overseas, with the carriers and with the foreign governments to make sure that these new security measures are in place, and if they are not in place, and we know that tsa has personnel over there monitoring these changes going into effect, if they are not in place, then, again, they can say you can't fly no the u.s. then. >> coming into the united states you won't see these changes being affected if you're flying domestically.