Biden on TikTok: 'lol' or national security worry?

US President Joe Biden’s debut on TikTok has caused a stir — not least because the Chinese-owned social media platform is still officially considered a security risk by Washington.

The video posted during the Super Bowl on Sunday was part of an effort by the 81-year-old’s reelection campaign to reach younger voters, and included a reference to the quirky meme of a laser-eyed Biden alter-ego.