The antenna trailing off the diver's foot is there to ward off sharks by creating an electromagnetic field that sharks are sensitive to. Unlike fish snagged with the diver's spear gun, sharks warded off by the Shark Shield remain unharmed. Courtesy of Shark Shield hide caption

itoggle caption Courtesy of Shark Shield

Georgia Democratic Senate candidate Michelle Nunn greets campaign volunteers at South DeKalb Community Achievement Center in Decatur, Ga., on May 13. The U.S. Senate race in Georgia is one of the most closely watched in the country. David Goldman/AP hide caption

itoggle caption David Goldman/AP

Florida's state capitol. A redistricting plan crafted by the Republican-controlled Legislature in Tallahassee was partially thrown out by a state judge. iStockPhoto hide caption

itoggle caption iStockPhoto

Protesters at an event in May in Naples, Fla., opposed to drilling near the Everglades. State officials say they have found no evidence of groundwater contamination from a type of drilling used nearby known as acidification. Linda S. Jacobson/Flickr hide caption

itoggle caption Linda S. Jacobson/Flickr

A man stands in line at Miami International airport to board a charter flight to Havana, Cuba. Travelers often fly to Cuba from the U.S. with piles of goods, despite a decades-long trade embargo. David Gilkey/NPR hide caption

itoggle caption David Gilkey/NPR