This week marks two years since the mass shooting at Robb Elementary School in Uvalde, Texas, where a gunman killed 19 children and two teachers. The victims' families are still angry at the lack of accountability over law enforcement's botched response to the massacre.

Gun shows are large-scale exhibitions in the U.S., with an estimated 5,000 events held per year. Efforts at meaningful gun reform have largely stalled, but more states in the U.S. are passing so-called red flag laws, allowing the courts to temporarily remove guns from people deemed dangerous. However, this move has angered some gun enthusiasts, as reporter Toni Waterman explains.