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The Federal Trade Commission's antitrust probe of Facebook is looking at whether the social network used acquisitions to take out its competition, according to the Wall Street Journal.

Why it matters: It suggests that the agency was serious when it said it might look at already-completed mergers and acquisitions as part of a broader review of the tech sector.

Flashback: Two major acquisitions, of Instagram and WhatsApp, have given Facebook a shield against declining user growth on its classic social platform for nearly a decade.

  • It bought Instagram first, in 2012, for $1 billion.
  • It purchased WhatsApp two years later for $19 billion.

In recent years, critics have contended that those deals allowed Facebook to stifle competition.

  • They say Facebook has used proprietary data, via a virtual private network called Onavo that it acquired in 2013, to identify small companies gaining market share and buy them before they can present too much of a threat.
  • Presidential candidate Sen. Elizabeth Warren (D-Mass.) has called for appointing regulators who might be willing to unwind those acquisitions by Facebook, and other purchases by major internet firms.

Yes, but: The exact nature of the FTC's inquiries are not yet clear. Investigations are generally cloaked in secrecy and can take years.

The bigger picture: The increased antitrust scrutiny of major tech giants may already be affecting their decisions about what companies to acquire — and whether the extra fight in D.C. is worth the effort.

Go deeper

Massachusetts Gov. Charlie Baker will not seek re-election in 2022

Mass. Gov. Charlie Baker (R) speaking during a press conference in November 2021. Photo: Jonathan Wiggs/The Boston Globe via Getty Images

Massachusetts Gov. Charlie Baker (R), a moderate who typically ranks as one of the nation's most popular governors, said Wednesday that he and Lt. Gov. Karyn Polito (R) will not seek third terms in 2022.

Why it matters: The decision leaves the gubernatorial race wide open and will likely affect multiple down-ballot races next year. Baker was expected to be the front-runner had he joined the race.

4 hours ago - Health

CDC prepares tougher testing rules for international travelers

Travelers with their luggage arrive at a COVID-19 testing location at the airport in Los Angeles, Calif., on Nov. 23, 2021. Photo: Frederic J. Brown/AFP via Getty Images

The Centers for Disease Control and Prevention said Tuesday night that it is working to impose stricter testing requirements for international travelers due to the spread of the new Omicron variant.

The big picture: The new rules would require all international travelers, regardless of vaccination status, to show a negative test taken a day before their flight to the U.S. Currently, the CDC says fully vaccinated travelers are allowed to show a test taken no more than three days before their departure, AP reports.

Republicans threaten to shut down government over vaccine mandates

Sen. Mike Lee (R-Utah) in the Capitol in November 2020. Photo: Joshua Roberts/Getty Images

Conservative Republicans in the House and Senate are planning to force a government shutdown Friday to deny funding needed to enforce the Biden administration's vaccine mandates on the private sector, according to Politico.

Why it matters: Congress has until the end of the week to pass a stopgap measure to extend funding into 2022, though objection from a small group of Republicans could shut down the government.