An examination of how President Abraham Lincoln used contemporary telecommunications to his maximum advantage in the American Civil War.

Take the ultimate guided tour of the most famous plane in the world, and meet the tireless crew charged with operating this global command center in the sky.

The NYPD's Counterterrorism Bureau is on the front lines in the war on terror. These specialized task forces have one goal: to keep New York City safe. During the busiest season of the year, Hercules teams deploy with 9-mm submachine guns, the TORCH team patrols New York's subway system and the bomb squad sweeps for explosive devices, all to secure the nation's largest city.