Alec Baldwin formally charged in 'Rust' shooting: Difference between live & 'dummy' rounds explained

Alec Baldwin has been criminally charged for his involvement in the fatal "Rust" shooting that led to Halyna Hutchins' death. "Rust" armorer Hannah Gutierrez-Reed was also charged and six live rounds of ammunition were found on the set of "Rust," according to court documents. Steve Wolf, a film weapons safety expert, explains the difference between live and 'dummy' rounds More LiveNOW from FOX streaming video