well, millions of americans will be heading to their thanksgiving destination today. we should warn you, you should expect longer security lines and more thoreau passenger screenings. to you are jason carrel is live at laguardia airport, set to be a busy place, given the fact there is this worldwide alert being issued. reporter: well, michaela, note to self if you ever want to travel through laguardia airport, do it about this time, 6:45, because take a look right now, things are working and moving really smoothly. i have seen the security line here in the past, michaela it has extended all the way down that hallway, look where it is right now. things moving along just fine at this point. flights are on time. despite that worldwide travel alert. tsa, as you know, has doubled down on security, combine that with being one of the busiest travel days of the year, expecting later on this afternoon, expected to get very busy out here. should tell you between now and sunday, 3.6 million peo