exaggerated version of the cause they champion - there is money and attention to be had. Doesn't make it untrue or paranoid, just motivated by personal gain. Certainly the most telling line in that article:

"Woolsey and Pry frequently produce EMP alarmist articles, that cite this statistic of an EMP attack killing most Americans. Woolsey has called the grid "totally vulnerable" to an EMP attack and called for $2 billion in funding to "fortify" the grid.

All the while, Woolsey has worked with three different venture capital firms who have investments in companies that could profit off of EMP hysteria."