contrasts duriha ng thenpadeath odntrasts during that same ripe, there l faonta er33fatal demand accidents that resulted in 199 people being killed. at the freeway airport in mitchellville, maryland, pilots practiced a simple rule to avoid the tragedies that just crashed over the hudson. it's a visual flight rule that you could see and avoid. most of the pilots we have talked to, they say that it is a rule that works well out there to keep pilots and passengers safe. >> i feel confident that it is enough. but there is always that one crazy circumstance where two planes could be in each other's blind spots and they'll never see anything coming until they hit. so it is never 100%. >> it's exactly what you do when you're out on the road. you see and avoid other cars. as long as everybody does what they are suppose to do, it is more than safe. you're safer flying a car than you are driving to the airport. >> the pilots use tools and instruments such as radars to detect the other aircrafts nearby. the aircraft owners say is that in the past 10 years, there were 70 small aircraft collisions. >>>