Quotation marks would only have to be used on thoughts if the<br />thoughts were someone else's. If the thoughts came from a book, computer source, or some other source, then quotation marks should be used. However, the writer of the essay does not have to quote his or her <i>own</i> thoughts.
As of 2011, there are at least 25,000 sworn (and armed) law enforcement officers working for federal agencies not traditionally associated with law enforcement, and 3,800 of them were specifically criminal investigators.
OIG's Special Agents: Enforcing Federal Laws. When most of us think of Federal agents, we think of the Hollywood version, dressed in suits and sunglasses. You may also know, thanks to a TV show called NCIS, that Federal agencies other than the FBI also have law enforcement agents. In fact, dozens of Federal agencies have their own law enforcement authority, and special agents who use that authority every day. Social Security is no different.