Firefighters and school districts in Colorado are warning about a potentially dangerous TikTok challenge that has gone viral.

Athlete Nayeli Clemente died after participating in a distance running challenge in 96-degree heat. Here's what you can and can't pack in your carry-on and checked luggage, according to the TSA's official list. The Canadian actor found "joy" in countering the U.S. president's "unserious" annexation talk.

The Chromebook Challenge, named for Google's line of laptops, encourages students to insert metal items into the USB port on their school-issued computers, intending to create sparks, smoke and possibly a fire.