Dan Grech

A holiday blizzard has blanketed Buenos Aires for the first time in decades, but there's little to celebrate. Argentina's coldest winter in 40 years has spurred a massive energy crisis. Dan Grech reports.

At issue in the civil case against Drummond is whether an American company can be held accountable for human rights violations committed elsewhere. The case is a first and its outcome could have far-reaching implications. Dan Grech reports.

Researchers are turning to the flying mammals for inspiration, looking to create flexible wings that can allow planes to be more agile and fit into tight spots. Dan Grech reports on the challenge of re-engineering a bat wing.

There's been a surge in citizenship applications across the country in the past six months. Patriotic fervor? More likely, immigrants are hoping to avoid the 69 percent increase in the application fee. Dan Grech reports.

After bomb scares in London and Glasgow, Britain has announced it will increase security checks on highly skilled immigrant workers. Dan Grech reports on how this move will affect a British economy that's dependent on foreigners.

Back in the late '90s, tequila made such a big splash in U.S. pop culture that it drove up the price of agave, the spiky plant used to make Mexico's national liquor. The events that followed tell an age-old story in agriculture. Dan Grech explains.

China's ZX Auto is teaming up with an American company to assemble vehicles in Mexico and then import them here. The result: An SUV selling for $13,000. Dan Grech reports.

The painkiller was pulled from shelves after studies found greater risk of heart attacks and strokes. A new study finds that even short-term use was dangerous, potentially opening Merck to more lawsuits. Dan Grech reports.

Universal Music is refusing to renew its annual contract with Apple to make its music available on iTunes. The at-will arrangement means Universal could yank its big name artists at a moment's notice. But that seems unlikely, Dan Grech reports.

With ConocoPhillips and ExxonMobil leaving Venezuela rather than play by President Hugo Chavez's rules, China may be primed to step in. Dan Grech reports.