The second part in our series about a historic Chicago snowstorm, featuring harrowing tales of some expectant mothers and the troubling side of the decades-old blizzard.

The blizzard's whiteout conditions are slamming Chicago commuters. The meteorologist-in-charge of the National Weather Service's Chicago bureau gives us the latest on what is being labeled a potentially "life-threatening" blizzard. National Weather Service: Chicago

As the massive snowstorm hits Chicago, the city says it is prepared. Elizabeth Brackett has the latest storm details.

Will the city shut down because of the snow? Ash-har Quraishi has the latest on weather-related cancellations and closings. Chicago Emergency Closings

Find out how the blizzard is going to impact Chicago companies when Kris Kridel, of WBBM Newsradio 780, joins us to look at the week in business.

The massive 2011 snowstorm has sparked comparisons to what many remember as the greatest storm of all: the famed blizzard of 1967. A few years ago, the late John Callaway brought us this remembrance of that historic event.

We've all heard of Kennedy, but do you know who Dan Ryan or William Edens are? Geoffrey Baer fills us in. Virtual World's Columbian Exposition Chicago Expressways "Who was Dan Ryan" -- Chicago Now

Do you have complaints about your credit card company? Are you mad at your mortgage modifier? "The Fixer" columnist Stephanie Zimmermann of the Chicago Sun-Times offers tips for calling customer service, and other consumer advice. 'The Fixer' Column

January in Chicago means frigid temperatures and high heating costs. But at least one family may not be dreading the heating bill. In fact, they don't have a furnace at all. Ash-har Quraishi explores the principles of Passive House, a green building plan. Passive House Institute U.S. Passivhaus Institut (International) Four Thick Walls blog

Could new apps make textbooks obsolete? We talk to the Chicago developer, a student himself, about this potential game-changer. Watermelon Express Apps

Some eight million people in the U.S. suffer from Post Traumatic Stress Disorder. A new study from Northwestern University offers hope in the form of a drug that could prevent this debilitating condition. Jay Shefsky has more in our Scientific Chicago segment. Abstract of the study Northwestern's Dunbar Lab for Research on Fear and Memory

Today, Boeing announced it is pushing back delivery of its 787 Dreamliner for the seventh time. Find out why when Newsradio 780's Kris Kridel joins us to look at the week in business.

We find out why zoo officials and primate lovers across the country have gone "ape" over Lincoln Park Zoo's newborn baby gibbon. Read about the white-cheeked gibbon

What's behind rising rates of asthma, autism and other childhood diseases baffling doctors? A new long-term study launching in Cook County hopes to find out, and we tell you how your family can participate. To find out more visit The Greater Chicago Study Center online or call 1-866-315-7124

Hundreds of millions of gallons of water flow throughout Chicago taps every day. But is the water safe to drink? A recent environmental study has set off alarms on Capitol Hill and at the EPA. Ash-har Quraishi takes a look at "Chromium-6." Chromium-6 Study (PDF link)

Saving the world - one bike at a time. We talk with F.K. Day, the Chicago bicycle entrepreneur who was recently named "one of the top givers" of the year. Find out more about World Bicycle Relief