The United States State Department scared the bejesus out of travelers across the globe Monday night in doing something they rarely ever do.

They issued a “worldwide” travel alert.

The alert came with the following warning: be aware of the widespread threats posed by ISIS and “copycat bombers”.

Normally, the threats are specific. The office will keep travelers abreast of not only terror threats, but outbreaks of disease, or high crime, or natural disasters such as earthquakes or hurricanes. This one, however, was broad and wide-ranging. The last one of its sort (“worldwide”) came in December of 2014.

This from USA Today:

The alert said that there were increased terror threats from al-Qaeda, Boko Haram and ISIL, the term used by the federal government for the Islamic State in Iraq and the Levant, which has claimed responsibility for the Paris terrorist attacks. The alert also said people unaffiliated with the groups may be inspired by recent terrorist attacks in France,Nigeria, Denmark, Turkey and Mali.

The alert comes as millions of Americans prepare to travel for the Thanksgiving holiday, and organizers of major events like the Macy’s Thanksgiving Day Parade bolster their security preparations.

“U.S. citizens should exercise vigilance when in public places or using transportation,” the alert said. “Be aware of immediate surroundings and avoid large crowds or crowded places. Exercise particular caution during the holiday season and at holiday festivals or events.”