Thousands of UK political ads went missing from Facebook archive searches

Thousands of UK political ads went missing from Facebook Inc'ssearchable advertising database on Tuesday, hampering researchers' ability to track ads two days before Britain's general election.Facebook's ad library, which it launched in the UK in 2018, is a public tool for users to view political advertising on the platform.The problem, first reported by Sky News, affected ads from the ruling Conservative Party, the Brexit Party and the Liberal Democrats.