Police officers patrol a street in Torreon, in the northern Mexican state of Coahuila, on July 19 after gunmen interrupted a party there, killing 17 people and injuring at least 18.
Ramon Sotomayor/AP
hide caption
Nearly all of the canola used in the U.S. is grown in North Dakota, and roughly 90 percent of the plants are genetically modified versions that can resist two types of herbicides.
Bill Kingsbury/North Dakota Tourism
hide caption
Grand Teton National Park spokeswoman Jackie Skaggs strolls across a square-mile section of state land in the park near Moose, Wyo.
Mead Gruver/AP
hide caption
Step Up 3D will be distributed in several 3-D formats across the country -- as well as in conventional 2-D.
K.C. Bailey/Summit Entertainment
hide caption