Wayne LaPierre, executive vice president and CEO of the National Rifle Association, testifies while NRA President David Keene listens during a Senate Judiciary Committee hearing on gun violence Wednesday. Mark Wilson/Getty Images hide caption

itoggle caption Mark Wilson/Getty Images

A concealed handgun permit holder waits to enter the General Assembly building in Richmond, Va., on Jan. 21. Known as "gun lobby day," crowds of gun owners visited the capital to argue in favor of gun rights. Most states in the U.S. allow people to openly carry guns in certain public places. Bob Brown/Courtesy of Richmond Times-Dispatch hide caption

itoggle caption Bob Brown/Courtesy of Richmond Times-Dispatch

President Obama's speech in Las Vegas on Tuesday on the country's immigration system was as notable for what was said as for what wasn't. Isaac Brekken/AP hide caption

itoggle caption Isaac Brekken/AP