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There have been many worries about bad actors hacking into social media platforms like Facebook and sowing chaos and distrust in our democracy. But now, Facebook is saying hackers might not even have to do any hacking at all to be effective. Instead, they can just say they did. It's called "perception hacking".

  • Also, a second night of civil unrest in Philadelphia following a fatal police shooting.
  • Plus, the GOPs monstrous math problem.
  • And, winter is coming for restaurants across America.

Guests: Axios' Sara Fischer, Mike Allen, Erica Pandey and Carolina Buitrago, project director at District Bridges.

Credits: "Axios Today" is produced in partnership with Pushkin Industries. The team includes Niala Boodhoo, Carol Wu, Cara Shillenn, Nuria Marquez Martinez, Michael Heidemann, Dan Bobkoff, Sara Kehaulani Goo, Alex Sugiura and Naomi Shavin. Music is composed by Evan Viola. You can reach us at podcasts@axios.com.

Go deeper:

Go deeper

Poll: Mayors acknowledge police violence as a problem but are resistant to major reforms

Thousands participated in a protest against racism and police brutality in August 2020 in Washington D.C. Photo: Olivier Douliery/Pool/AFP via Getty Images

Roughly 60% of U.S. mayors acknowledge police violence is a "problem in their communities," but 80% believe their police departments "do a good job" attracting "well-suited" officers, according to results of the 2020 Menino Survey of Mayors published Wednesday.

Why it matters: Protests against police brutality have swept the nation since last May, when white Minneapolis police officer Derek Chauvin killed George Floyd, a Black man, after kneeling on his neck for eight minutes and 46 seconds. The Black Lives Matter movement has since escalated calls to defund the police.

2 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.