"Take a front row seat on a period of U.S. history from 1930-1940 when America's heartland was ravaged by a weather phenomenon that became known as a "black blizzard." Watch as scientists and special effects experts recreate the black blizzards in amazing detail and reveal that this was a man-made disaster. Discover how these phenomena form, what they're made of, and how they affect people's health and the environment. Learn how a black blizzard emerged...

CONSPIRACY: OKLAHOMA CITY BOMBING-----COLUMBINE: INVESTIGATING WHY------------AMERICAN JUSTICE: ATTACK AT WACO--------1993 WORLD TRADE CENTER BOMBING. DN

Explores every aspect of Theodore Roosevelt's life, from his days as a Dakota cowboy to his historica term in office and beyond.

RUMRUNNERS, MOONSHINERS AND BOOTLEGGERS-----------------KU KLUX KLAN: A SECRET HISTORY. DN

MURDER AT THE FAIR: ASSASSINATION OF PRESIDENT MCKINLEY-----------MODERN MARVELS: PANAMA CANAL----------------BIOGRAPHY: THEODORE ROOSEVELT: ROUGHRIDER TO RUSHMORE. DN

THE TRUE STORY OF SEABISCUIT----MODERN MARVELS: THE EMPIRE STATE BUILDING---------BIOGRAPHY: AL CAPONE: SCARFACE-----------BIOGRAPHY: BONNIE & CLYDE: THE STORY OF LOVE & DEATH. DN

Explores the truth behind the 1947 "Roswell incident" and whether there was a government cover-up and why. Includes interviews of former Air Force officers who participated in top secret government experiments in New Mexico during that period.

Examines the many factors that influenced the creation of state boundaries.

APPRX 94 MINUTES. $12.50. FIRST AIRED 2/15/2007. IMBUED WITH BOTH REMARKABLE TRIUMPH AND UNPRECEDENTED SCANDAL, THE LEGACY OF RICHARD MILHOUS NIXON IS ONE OF THE MOST COMPLEX AND ENDURING OF ALL FORMER US PRESIDENTS. DN