12/8: New Pfizer guidance as the company is working on an Omicron specific vaccine. Instagram's chief to testify on Capitol Hill about social media's impact on teenagers.

Pfizer says two doses of its existing covid vaccine may protect against the new strain, but three doses had a significantly better effect, according to an initial laboratory study. The drugmaker plans to announce it is working on a new omicron-specific vaccine. Russia is getting close scrutiny this morning after a video call between President Biden and Vladimir Putin. The head of Instagram, Adam Mosseri, is set to testify on Capitol Hill today about social media's impact on teenagers. Congressional leaders have approved a one-time deal to let democrats raise the government's debt ceiling on their own. If the senate approves it tomorrow, Congress will be able to raise the debt limit once before mid-January without any republican support. Former White House Chief of Staff Mark Meadows says he will not testify before the select committee investigating the assault on the Capitol today as scheduled. Closing arguments in Jussie Smollett's criminal trial are set to start this morning. Cereal maker Kellogg is in a serious standoff with 1,400 workers, who have been on strike. Workers say they routinely work up to 80 hours a week and oppose the company's two- tier compensation system, giving new employees lower pay and benefits. Colorado is in the middle of its longest snow drought in decades and ski resorts are starting to feel nervous.

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