5 Things to Know This Morning

Jan. 21, 2013— -- Your look at the five biggest and most buzz-worthy stories of the morning.

1. Obama Inauguration Ceremony Enters Second Day
President Obama was sworn in for four more years in a private ceremony at the White House on Sunday. The president and Vice President Joe Biden will be sworn in on the steps of the Capitol in a public ceremony this morning.

2. No credible Threats Against Inauguration
There are reports of no credible threats ahead of today's presidential inauguration. However, authorities say they are mindful of Algeria and the desires of al Qaeda, its sympathizers and lone-wolves.

3. Manti Te'o Was One of Several Duped in Hoax
ABC News has learned that Manti Te'o was one of four, possibly five people duped into believing Lennay Kekeu was a real person. The football star's spokesperson said Sunday that he is grateful for all of the support he has been receiving.

4. Dreamliner Battery Was Not Overcharged, Officials Say
The National Transportation Safety Board ruled out excess voltage on Sunday as the cause of a battery fire onboard a Boeing 787 Dreamliner jet last month. Investigators and Boeing executives are working around the clock to determine what caused the incident.

5. Ravens, 49ers to Meet at Super Bowl XLVII
The Baltimore Ravens and the San Francisco 49ers will square off in an epic match at Super Bowl XLVII. The Ravens beat the New England Patriots 28-13 on Sunday after the San Francisco 49ers shut down the Atlanta Ravens, 28-24.