Wray and colleagues, stung by criticism that they failed to raise sufficient alarms before the deadly Jan. 6 attack on the U.S. Capitol, are in a bind: Unlike January, when Trump summoned supporters to Washington as part of his effort to block Joe Biden’s certification as president, the threats circulating online are amorphous as to time and place. Without a good sense of what is credible and what is just online bravado, law enforcement agencies have to stay on alert across the country, according to John Demers, the recently departed head of the Justice Department’s national security division. “The challenge is like that of the security guard who has to stay vigilant when nothing is happening, then something could happen in an instant,” Demers said in an interview. “So you have to be prepared.” But there’s also an upside, as there’s no large gathering point of people that can turn violent like there was on Jan. 6, when Congress was counting the Electoral College votes to officially confirm Biden’s victory, Demers said.