you heard right. it can take up to six months to get a reply from the government. That is a big difference from the private sector - everything in the government moves very slowly. However, things move much quicker if you have a contact in the agency you are applying to. secret vs top secret clearance - there is much more work involved with a top secreat clearance. No, they dont follow you around for a month. But they do go and talk to everyone you have known in the past 10 years - your employers, your friends, your neighbors, your entire world. if you already have a secret clearance, getting a top secret one shouldnt be too hard.