MS 13 Mara Salvatrucha Trece. MS-13. The letter "M" is the 13th letter in the alphabet. The number 13 is superstitiously known as a number to be feared. Pretty fitting, considering the MS-13 Gang is now the most feared gang in all of America. Its violence is wreaking havoc on a growing number of cities and small communities across the country - making the MS-13 Gang "a terrorist organization right in our own backyard," according Detroit Police Sgt. Harold Rochon, an expert trainer on gangs and the author of a book titled, "Terrorists in Designer Jeans." This one-hour training broadcast will cover everything you need to know about the MS-13 Gang, from its origin to its identifiers - such as graffiti, tattoos, gang hand-signs and gang colors, to its method of recruiting, drug dealing, and plotting violent crimes in our communities - with a goal to help you gain the knowledge that will give you the power to better arm your agency in getting a grip on the drugs and crime that the MS-13 Gang is infiltrating into your jurisdiction. Sponsor: FLETC; US Department of Health and Human Services; Substance Abuse and Mental Health Services Administration; Center for Mental Health Services; Center for Substance Abuse Prevention; Center for Substance Abuse Treatment; Public domain video.