After Vice President Joe Biden said he would advise his family not to fly, public health officials and airline experts are trying to keep the public calm and aware. Ko Im has the update on what travelers can do.

There are many things that we still don’t know about the new virus that is causing swine flu outbreaks all over the world. But we are learning more every day. Prune Perromat has been following that part of the story with Professor Stephen Morse, a renowned epidemiologist specialized in emerging viruses who teaches at Columbia University’s Mailman School of Public Health.

Every day 7 million people ride the New York City transit system. Here, Columbia News Tonight investigates what kinds of bacteria ride along with them. Jennifer Austin reports.

Supreme Court Justice David Souter’s retirement will give President Obama the chance to be the first democratic president in 15 years to be able to make an appointment. There’s a growing list of who some media outlets think may be in the running.

When Columbia students return next fall, they may no longer have a place to light up. In this Morningside report, Jessica Hopper examines a proposed smoking ban on campus.

For more than a decade, our New Yorker of the week has been making a difference. Yomi Abiola reports on how this East Harlem resident has been giving back to his community through his favorite past-time: baseball.

Wednesday marked President Obama’s 100th day in office. Franz Strasser takes a look back at the president’s ambitious agenda and the many challenges he faced along the way.

This week President Obama said his administration will actively target businesses that employ illegal immigrants. Mariana Atencio speaks to those who will be most affected by this decision.

Chrysler, America’s third largest auto company, files for bankruptcy protection after failing to reach a deal with its debt holders. Sheena Lee reports on the future of the U.S. auto giant.

The swine flu is a virus that attacks your health. But a different type of virus may corrupt your work, steal your time, and cause major frustration. Fahad Faruqui has the story.