You might want to find a better site. Here's a quote from the article
"One of the most glaring errors in the Popular Mechanics hit piece appears in the 'Intercepts Not Routine' section where it is claimed that, "In the decade before 9/11, NORAD intercepted only one civilian plane over North America: golfer Payne Stewart's Learjet, in October 1999."
As Jim Hoffman points out in his excellent rebuttal, "This bold assertion flies in the face of a published report of scramble frequencies that quotes the same Maj. Douglas Martin that is one of PM's cited experts!"
"From Sept. 11 to June, NORAD scrambled jets or diverted combat air patrols 462 times, almost seven times as often as the 67 scrambles from September 2000 to June 2001, Martin said.""
The 67 scrambles from September 2000 to June 2001 were against external threats/practice scrambles not against civilian planes already over the US. The soviets used to send aircraft towards our borders on a regular basis. Which means there is no glaring error and it would have been easy to follow up and verify the information, but the writer would rather have it appear to be an outright lie. The rest of the article is the same. I could take the time to refute the rest, but would probably be a waste of time.