Idaho Firefighter Attack Highlights Cost of Ignoring Early Signs of Extremism

Three firefighters were shot and killed in Idaho after a 20-year-old man set a fire to lure them into an ambush from a tree perched over their vehicle. The attack highlights the cost of missing early signs of extremism, which authorities had been investigating before the incident. The shooter was taken into custody, but details about his motivations remain unclear. The incident is the latest in a series of violent attacks on first responders in recent years.