The Texas Department of Public Safety issued its latest “Gang Update” on Monday August 31.  According to the DPS’  Texas Gang Threat Assessment, several Texas based gangs remain a major problem.  The report ranks gangs in order to determine which ones are the most dangerous.  Under the ranking system, Tier One gangs pose the biggest threat.  These include Tango Blast with 15,000 members, Texas Mexican Mafia with over 4,700 members, and Texas Syndicate with more than 3,400.