Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Oklahoma City Marks 15-Year Bombing Anniversary VOA News 19 April 2010 Thousands of search and rescue crews attend a memorial service in front of the Alfred P. Murrah Federal Building in Oklahoma City (file photo) Photo: AP Thousands of search and rescue crews attend a memorial service in front of the Alfred P. Murrah Federal Building in Oklahoma City. Building was bombed by Timothy McVeigh who said his act was a protest against the overreach of the federal government (file photo) Oklahoma City in the south-central United States observes the 15th anniversary Monday of the bombing of a federal government building in the country's deadliest domestic terror attack. Survivors, friends and relatives of victims will attend a ceremony at the site of the bombing where 168 people were killed and several hundred others injured. U.S. Homeland Security chief Janet Napolitano is scheduled to speak. The bomber, Timothy McVeigh, said his act was a protest against the overreach of the federal government. He was executed for the attack. The anniversary comes amid a rise in anti-government sentiment in the U.S. Thousands of people swarmed the Oklahoma state capital last week protesting what they say is the excessive growth of federal power. Bill Clinton, who was president in 1995 when the bombing occurred, said Friday he sees dangerous parallels between current anti-government protests and political tensions ahead of the Oklahoma City bombing. Mr. Clinton said leaders of such protest movements as the "Tea Party" should be careful their words do not prompt followers to take violent action. He said there can be "consequences" to demonizing the government and its employees. Some information for this report was provided by AP and AFP. .