Instant Access to Where Flights Have Been and Where They are Going, Security Compromised?

Ever wonder why your plane is late and if the airlines are telling you the truth about where and why it is delayed?  Well now you can see instant information about the location of your flight. Should this be public?While searching throughout the internet for interesting information I stumbled across planefinder.net and discovered one became immediately amused.

Then I became concerned, if I can search and see all of this information so can everyone, including those who could possibly use this information to fuel terroristic intentions.

This website not only shows you a planes exact location, but it will also show you the flight path of the plane.

It amazes me that there are over 8,000 planes within the continental U.S. at this very moment!

What do you believe?  Should this be a publicly accessed website?