(Headache battle is sloooowly being won.)
You gotta try this... I guarantee you an "oh my god" moment.
You can legally observe the air traffic control data for most major airports in the US.
Go to www.passur.com ... you can read all over the page if you want, but get down to business by looking in the lower right side and clicking;
"Airport Monitor - Demo it now!"
The page you go to will list several airports.
Lower in the middle column will be JFK... PICK THAT.
Then change the current date in the applet that opens up to July 31, 2004. AND then click 5x speed.
So far so good... you're going to see loads of blue (arriving) and green (departing) aircrafts.
Now... click to expand the view to 40 miles.
Dude... that is a fucking shit load of aircrafts.... and this is REAL DATA.
The "current view" is REAL TIME DATA... I mean... WOW!