Here’s what I’ve learned about disasters: Your neighbor is your savior

On the day in July that a 20-year-old man named Thomas Crooks tried to assassinate former president Donald Trump, too many officials and agencies came up short, as we’ve heard again and again. But we’ve heard far less about another category of first responders — one that appears at every major emergency — who have received very little scrutiny or credit. Who were among the first to notice that there was a man behaving suspiciously on a nearby roof?