While the death rate for women with lung cancer has dropped slightly, the disease remains the world's deadliest cancer. NBC's Brian Williams reports.April 1, 2011
UP NEXT
Virginia Commonwealth University shooting leaves 7 injured
04:25
Prince Harry testifies in British tabloid case
01:54
Meet the hiker dreaming up the 14,000-mile American Perimeter Trail
01:58
Job seekers speak out about pulled employment offers
01:48
Chris Christie makes 2024 GOP presidential bid official
01:45
What we know about the Virginia private plane crash