http://adf.ly/1SZdI2, http://adf.ly/1XIsTW, http://www.ctvviet.com, http://www.nhac24.com <br />A revised immigration order from the U.S. president leads off our reporting this Tuesday. It's followed by a look at how North Korea's weapons program is accelerating. From there, we're examining the history of the world's most famous sled dog race, and we're telling you how you can nominate a future CNN Hero.
