Bush tried to do many things to stop another terrorist attack from happening. He ordered an invasion of Afghanistan in 2002. He did this because the leaders of Afghanistan were helping Osama bin Laden, who was responsible for attacking America on September 11, 2001. Almost ten years later, on May 2, 2011 bin Laden was killed on orders of President Barack Obama. The war in Afghanistan (2001–present) has not ended yet. Bush asked Congress to do more to stop terrorism. As a result, Congress passed a law that created the Department Of Homeland Security, a government department which tries to prevent terrorist attacks from happening. It also responds to emergencies such as floods or diseases.