For those in the field already what has been your experience with companies wanting someone with a top secret clearance?
They check like employment for the last 10 years, any criminal charges, credit checks, they interview neighbors, friends (actually talked with a guy for my old college roommate that works in the Pentagon now), ask about drug use, if you have family that lives out of the country, if you've been out of the country and how often, etc.
The main things they want to know is if you're a trustworthy and honorable person, if you have any ties to other countries that would cause you to be against the US, and if you would sell US secrets for money. Look up the SSBI (Single Scope Background Investigation) requirements. I think there is a lie detector test for the Top Secret but I'm not sure.