Russian interference in UK democracy.

There's been a surge in bot activity in the past month in online discussions about reopening America from COVID-19 shutdowns, researchers at Carnegie Mellon University said this week.

The researchers analyzed over 200 million tweets discussing COVID-19 and found that roughly half the accounts were likely bots.

They identified the bots by looking for accounts that tweeted more frequently than humanly possible or whose location appeared to rapidly switch among different countries.

It's unclear who's behind the surge in bot activity or whether they're originating from the US or abroad.