Lung Cancer Is the No. 1 Cancer Killer

According to American Cancer Society, lung cancer is the worst killer in America than other kinds of cancer.

Peter Jennings died Sunday after a brief battle with lung cancer. He was 67.

ABC News anchors said they hope if anything positive can be taken from Jennings' death, it is a greater awareness of the dangers of smoking.

"I want to give a message," Barbara Walters said. "If you have kids who are smoking, for heaven's sake, tell them that we lost Peter."

Lung cancer is the worst cancer killer in America, taking more lives each year than breast, prostate and colorectal cancers combined, according to the American Cancer Society.

An estimated 160,440 Americans die each year from lung cancer, accounting for 28 percent of all cancer deaths. Over 173,000 new cases of lung cancer are diagnosed each year, accounting for 13 percent of new cancer cases, according to the ACS.

More than 87 percent of lung cancers are smoking related, according to the Lung Cancer Organization.

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