Why I said no to an interview

Last year, I got a call about a job opportunity in my field of study. I have my resume still on sites, but I haven't applied anywhere since starting at FedEx in November '16.
The job was at WPAFB, so I knew it paid well, but I also knew it had potential to be a casualty of any federal budget showdown.
I passed on the opportunity. The recruiter seemed incredulous.
Meh. I feel validated.