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.
It is the mobile, uniformed law enforcement arm of U.S. Customs and Border Protection (CBP), a component of the U.S. Department of Homeland Security (DHS). With over 21,000 agents, the U.S. Border Patrol is one of the largest law enforcement agencies in the United States.