explain how "the land of the free" can imprison more of its own people than any other nation on Earth.

Starting in the 1980s, the United States undertook a progressive criminalization of our society that has resulted in "the land of the free" imprisoning more people (both per capita and absolutely) than any other -- see: http://en.wikipedia.org/wiki/United_States_incarceration_rate .
Both major political parties are fully complicitous in the repudiation of our founding principles of freedom, actively hostile to American Liberty, engaged in treasonous collusion with those controlling all three branches of the Federal government to suspend the Bill of Rights, and criminally conspiring to keep the truth from the American People. Challenge American fascism by signing, and by disassociating yourself completely from both the Democratic and Republican parties.