Planning a U.S. trip? Some tourists may have to share social media history

Travellers to the U.S. may soon have to share five years of social media activity when entering the country.

This would affect residents of 42 countries, though Canadians are currently exempt.

The changes follow an executive order from U.S. President Donald Trump aimed at keeping visitors with hostile attitudes toward American institutions out of the country.

Experts warn automated checks of social media could misinterpret posts, making it hard to appeal decisions.

The public has two months to comment on the proposal, which is now in the Federal Register.

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