Comment by moron4hire

TS is "more difficult" than S in the sense that is more difficult to win a lottery jackpot than the smaller prizes. It's not "more difficult" in the sense that there are higher expectations or you're held to a higher standard. If you fail a TS clearance investigation, you won't be able to have any position of public trust at all, even if it's just being in HR and processing government employees' health insurance elections.