We've all probably been there, at work, feeling crummy, when we should be home in bed. Maybe we do it because we need the money, or we feel like we can't miss that super important meeting. But what if you work with food and coming in sick means potentially infecting hundreds of other people?

A coalition of food labor groups says it happens a lot, and they blame the lack of paid sick days for people who pick, process, sell, cook and serve food.

The rest of the economy may not be doing great, but airlines are expecting a banner year. Profitability is up and fuel prices are declining, but that's not necessarily great news for consumers.

When Robert Herbst, a former pilot and industry consultant for many years, says the skies are blue, it sounds pretty convincing. And from Herbst's projections, this may be a historic year for the airline industry.

You may not have noticed when you woke up today, but the Internet universe expanded overnight by the trillions.

Today at midnight, Greenwich Mean Time, the new Internet protocol system IPv6 was born, bringing "more than 340 trillion, trillion, trillion" extra Internet protocol addresses into the world, according to the Internet Society, the nonprofit, Internet policy organization that is behind the system's launch and also controls the .org domain.

I always suspected that the pursuit of science could keep a person young — or at least young at heart.

Now I have evidence. Sort of.

The Foundation for the National Institutes of Health, a charity that helps raise money to support the NIH, today announced the Lurie Prize. A $100,000 check awaits a "promising young scientist in biomedical research" with the right stuff.

Tuesday was, unquestionably, a very bad day for public-employee unions and not just for the reason that got most of the attention, Wisconsin Gov. Scott Walker's success in fending off an attempt to oust him through a recall election.

The Wisconsin recall election might have failed, but it succeeded in sending an ominous message to pro-labor forces across the nation — especially in the Midwest, where a handful of legislatures are pushing to roll back collective bargaining and other union rights.

The vote against Republican Gov. Scott Walker was prompted by his support for a law limiting collective bargaining for some public sector employees. His victory Tuesday night could embolden governors in states such as Ohio, Indiana and Missouri to push back harder on labor rights.

Who is Latino? Who counts as Native American?

The debate over who is considered a minority was brought to the spotlight by the Senate race in Massachusetts. Democratic candidate Elizabeth Warren claimed she had Native American heritage, but there's no records to indicate that. Still, Warren insists that she learned of her background through family stories and that she is proud of her heritage.

Republicans need a net pickup of four seats to win control of the U.S. Senate this November. One opportunity they see is in North Dakota, where longtime Democratic incumbent Kent Conrad has decided not to run for a sixth term.

Republican Rep. Rick Berg is expected to win the GOP nomination in next Tuesday's primary. If he does, he'll face Democrat Heidi Heitkamp.

The shuttle Enterprise made a incredible trip up the Hudson River by barge, today. The shuttle was framed by New York City's skyline and eventually it will be hoisted from the barge to its new home at the Intrepid Sea, Air and Space Museum.

Here are some pictures from the Enterprise's journey: