Fear for Obama's Safety Grows as Hate Groups Thrive

Experts who track hate groups across the U.S. are growing increasingly concerned over violent rhetoric targeted at President Obama, especially as the debate over health care intensifies and a pattern of threats emerges.

The Secret Service is investigating a Maryland man who held a sign reading "Death to Obama" and "Death to Michelle and her two stupid kids" outside a town hall meeting this week. And in New Hampshire, another man stood across the street from a Presidential town hall with his gun on full display. Read more.