A pet food recall is expanding after more than 70 dogs have died from eating toxic mold in Sportmix pet food. Source

“The mutations in the Columbus strain are likely to make the virus more infectious, making it easier for the virus to pass from person to person,” Ohio State University said in a statement. Source

The White House Coronavirus Taskforce warned there may be a U.S. variant of the coronavirus that is more contagious as the country is racing to increase the number of vaccinations. Carter Evans has the latest. Source

Most who think so think they should be removed from office. Source

Here’s a look at the top stories making headlines on the “CBS Evening News with Norah O’Donnell.” Source

Michael Hayden as a long record of service to the U.S. as a four-star general in the Air Force and head of the National Security Agency and CIA under both Republican and Democratic presidents. General Hayden joins CBSN’s “Red & Blue” host Elaine Quijano to discuss how he views last week’s attack on the Capitol and his concerns for the future of the country. Source

ProPublica reporter and Frontline correspondent A.C. Thompson joins CBSN’s “Red & Blue” to discuss his reporting on members of several well-known hate groups being identified at the attack on the U.S. Capitol. Source

Thousands of troops are guarding the Capitol as the Defense Department warns that the threat level for violence is very high ahead of President-elect Biden’s inauguration. Kris Van Cleave reports. Source

“CBS Evening News” anchor and managing editor Norah O’Donnell reminds us that the U.S. government remains “of people, by the people, for the people.” Source

President Trump has taken no responsibility for the violence at the U.S. Capitol, and has released another recorded video message in which he says nothing about Wednesday’s impeachment vote. Ben Tracy has the latest. Source