SUP Magazine: What Is a Faraday Bag?

The arrest of suspected United Healthcare CEO murderer Luigi Mangione has led to even more questions about the 26-year-old purported methods and motives. One piece of his gear in particular has raised eyebrows among some observers.   According to CNN , prosecutors claimed in court on Dec. 9 that Mangione had a Faraday bag on him, which they believe serves as "evidence of criminal sophistication" in the case. Mangione, for his part, said that his backpack was simply waterproof and di...