"Baby Doc" is back in Haiti. The former Haitian dictator, Jean-Claude Duvalier, says he's returned home after 25 years in exile to help rebuild the country. His homecoming has drawn a mixed reaction, from angry opponents to cheering supporters. Tonight, who is "Baby Doc" and what was Haiti really like under his rule.

CBC Archives: Duvalier's last days in Haiti.

Happy Blue Monday! Today is the saddest day of the year according to psychologist Cliff Arnall. Based on the mix of dreary weather, holiday debt and broken New Year's resolutions, he contends the third Monday of January is the saddest. What to do, what to do. Well, we ask the author of a book title that says it all: "The Happiness Project: Or, Why I Spent a Year Trying to Sing in the Morning, Clean My Closets, Fight Right, Read Aristotle, and Generally Have More Fun."

Plus Mark sits down with the two winners of Champions of Change. Bob Davisson and Bobby Hayes are both taking home $25,000 for their charities. The Bobs tell us what this means for their volunteer work.

More: Bob Davisson's work in Haiti 
More: Bobby Hayes's work with the Joshua Group

Reshmi also has the news of the day, and Mark's Disconnect looks at Starbucks' latest offering. 8:00 p.m. ET live.