Obama reverses stem cell research ban

In a ceremony at the White House today, President Obama signed an executive order reversing the Bush Administration's severe limitations on stem cell research. The president also issued a memorandum that directs Administration officials to restore scientific integrity to government decision making. Throughout the Bush Administration, many scientists said they were ignored or silenced, and that their data was manipulated for political reasons. Now, many in the scientific community are hoping this period has come to an end. Tanya Snyder reports from Washington.