interim leader. right now in this country, lots of winter weather in colorado. it's bringing heavy snow to denver and surrounding areas. it's disrupting travel. it's expected to keep moving across the country. and a close call, another one for planet earth. an asteroid the size of a football field is expected to fly by our planet today. don't get too worried, though. scientists say there will be a good 600,000 miles between us and that massive space rock. 115 cardinals are getting ready to vote on a new pope tuesday. people arne the world wiound th watching for smoke from chimney above the sistine chapel that will signal when the selection is complete. today, as you can see, there are workers installed with the chimney stack on the roof and we want to go to nbc's claudio la vanga, our guy in rome.