This year marks the 20th anniversary of the largest act of domestic-borne terrorism in the United States. On the morning of April 19, 1995, a bomb exploded at t...
Regina Bonny In this April 19, 2011 file photo shows Regina Bonny, a retired Midwest City, Okla., police officer from Moore, Okla., at the chair of DEA agent Kenneth Glenn McCullough in the field of chairs at the Oklahoma City National Memorial and Museum in Oklahoma City on the 16th anniversary of the Oklahoma City bombing. The memorial is where visitors can pay tribute to the people who were killed and those who survived the bombing at the Alfred P. Murrah Federal Building on April 19, 1995. While the Memorial Museum has an admission fee, the outdoor memorial, full of symbolism, is free and open year round. (AP Photo/Sue Ogrocki, File)