TikTok on Monday pushed back against a law that would force the popular video app to sell to a non-Chinese owner or be banned, in what is shaping up to be a landmark case.

© Michael A. McCoy for The New York Times

TikTok on Monday pushed back against a law that would force the popular video app to sell to a non-Chinese owner or be banned, in what is shaping up to be a landmark case.

© Michael A. McCoy for The New York Times

Readers offer different answers in response to a guest essay. Also: Protests on campus; China’s adoption policy; Trump the fixer; hearing loss.

They are facing legal pushback that may signal a new era of accountability for social media titans.

Colleges and universities are democracy’s greatest arsenal. They do not need the unanimity of the graveyard.

What should we do when TikTok’s algorithm turns deadly?

The world will soon be flooded with fake humans.

Higher education should be tolerant but never neutral.

In its first detailed response to a legal challenge, the agency said TikTok’s proposed changes wouldn’t prevent China from using it to collect U.S. users’ data or spread propaganda.

Violent attacks on foreigners have prompted a debate about extreme nationalism online in a country that heavily censors information the government bans.