. >> reporter: silvey only flies outside the restricted air space and even then takes extra precautions. giving smaller airports a courtesy heads up. >> but still it's smart to talk i always call him telling him when and where i'm going to fly. >> reporter: but he also understand this fear from the cockpit. >> shakes you up. if you see a drone a hundred feet above you and you're at 700 feet -- >> reporter: a former navy pilot, he's been flying commercial for the past 20 years. he warns something that small can cause damage or worse. especially during takeoff or landing. >> first thousand feet and last thousand feet are more where they have to deal with. that's a bad time to lose an engine. >> some frightening numbers from the faa on this subject as well. they say more than 722,000 drones are registered here in the u.s. but thousands more may be unregistered. the faa says it has seen these close calls jump about 50% from 2015 to 2016. >> scary. >>> well, it is quickly starting to warm up and we're going to stay dry. take a look at this. you're looking at a live view of zoo. i could stay

in virginia today, jc silvey was flying his drone for photography. but he's also a commercial airline pilot. >> the biggest danger is it taking out an engine. it definitely could throw the blades in the engine. >> 722,000 drones are now registered with the faa. tens of thousands more may not be. and owners not aware they need to stay away from planes and airports. tom costello, nbc news, washington. >>> in just a moment, one of a parent's worst nightmares, a school bus collision, this one seen from the inside. >>> some remarkable video out tonight showing a school bus accident that could have been a lot worse. this is surveillance video from inside the bus in dayton, ohio, as an suv slammed into it. at an intersection. the impact as you saw sent students flying across the aisle and tipped the bus on its side. remarkably, there were no serious injuries. >>> tonight it's the kind of thing stargazers dream up, a triple treat in the sky, an eclipse, a comet and a full moon all in the same night. the penumbral lunar eclipse will occur at the same time a f

in virginia today, jc silvey was flying his drone for photography. but he's also a commercial airline pilot. >> the biggest danger is it being taken out an engine. it definitely could throw the blades in the engine. >> 722,000 drones are now registered with the faa. tens of thousands more may not be. and owners not aware they need to stay away from planes and airports. tom costello, nbc news, washington. >>> in just a moment, one of a parent's worst nightmares, a school bus collision, o seen from the inside. americans - 83% try yet up 90% fall short in getting key nutrients from food alone. let's do more. add one a day 50+ a complete multi-vitamin with 100% daily value of more than 15 key nutrients. one a day 50+. what twisted ankle?ask what muscle strain? advil makes pain a distant memory nothing works faster stronger or longer what pain? advil. because my teeth are yellow. why don't you use a whitening toothpaste? i'm afraid it's bad for my teeth. try crest 3d white. cr