the Act was one of the most controversial elements of the 1850 compromise and heightened Northern fears of a "slave power conspiracy". It required that all escaped slaves, upon capture, be returned to their masters and that officials and citizens of free states had to cooperate.
In terms of concussion rates per 1000 exposures, the girls' high school sports with the highest rates of concussions are soccer (0.36), basketball (up to 0.21), and lacrosse (0.20).
