I know someone who works in Corvallis, who saw a strange looking plane flying around. I showed him a picture of a Predator drone, and he told me that is what he saw.
I recalled a TV news program years ago (60 Minutes?), about a flow of money from (something like) organizations sponsoring terrorist activities, to two cities in the US. One was on the east coast, the other was Corvallis.
It was a few days before the 9/11 attacks.
There is also an Army Reserve air field in Albany, which is just a few miles north of Corvallis.