Of all the tools available to law enforcement, the living, breathingundercover operative remains the gold standard. This is true in TV shows and in the real world. In the era of electronic surveillance, UC work enforces accountability; it prevents mistakes, and of all the boots on the ground, undercover agents are often the most valuable.The FBI generally has about 100 UC agents working full-time in the field. In the 1990s and 2000s, Marc Ruskin had the most diverse, and noto