Mainly because it toughened-up the Fugitive Slave Act, allowing official slave-catchers to hunt down runaways. This recruited many new Abolitionists, and caused Harriet Beecher Stowe to write 'Uncle Tom's Cabin'.
The first letter of each word makes Suribachi. Mt. Suribachi held special significance in the Battle of Iwo Jima because that is where the US Marines raised the flag
