Dear MD Dept. of Corrections

You do know you're (at minimum) violating the Terms of Service of any such site you get/use login info for, right? And, while the condition of the labor-market makes it so you can ask people to make just about whatever sacrifice you might like, this kind of request is just freaking creepy. Frankly, if you can't see a prospective employee's social media content, it's due to (appropriately-set) privacy settings. It means that your prospective employee isn't careless with their data. Most employers that do social-networking checkups have the decency to limit themselves to checking for the poor judgement of sharing certain kinds of data inappropriately. Your method crosses the line. You deserve the kind of desperate employees that you'd get under this kind of program.