Mark Pierce enlisted in the military in 1970, served in Vietnam and retired in 2010. Years later, his two sons also joined the armed forces. Courtesy of Mark Pierce hide caption

itoggle caption Courtesy of Mark Pierce

A memorial sits at the site of Michael Brown's death in Ferguson, Mo. Any investigation into his shooting by a police officer is likely to take months. Larry W. Smith/EPA/Landov hide caption

itoggle caption Larry W. Smith/EPA/Landov

Killer whales perform in Shamu Stadium at the SeaWorld Orlando theme park in Florida. SeaWorld says it will not appeal a citation that prohibits trainers from performing with the whales. Phelan M. Ebenhack/AP hide caption

itoggle caption Phelan M. Ebenhack/AP

Forces loyal to Syria's President Bashar Assad walk along a street in Mleiha, near the Damascus airport, during a tour organized by the Syrian government on Aug. 15. Omar Sanadiki/Reuters/Landov hide caption

itoggle caption Omar Sanadiki/Reuters/Landov

Giant Cabbage Weigh-Off 2013 winners (with placards, left to right): Scott Rob (92.10 pounds), Keevan Dinkel (92.30 pounds) and Brian Shunskis (77.40 pounds). The growers are joined by the cabbage fairies, a group of women who for 15 years have volunteered at the cabbage competition. Clark James Mishler/Courtesy of Alaska State Fair hide caption

itoggle caption Clark James Mishler/Courtesy of Alaska State Fair

President Obama said Wednesday that the extremist group that carried out the beheading of U.S. journalist James Foley engages in "cowardly acts of violence" and "has no place in the 21st century." Kevin Lamarque/Reuters/Landov hide caption

itoggle caption Kevin Lamarque/Reuters/Landov