The March 5, 2010 episode of Glenn Beck dealt with "Indoctrinating our Children", about how a leftist takeover of America's education system is teaching a false history to our kids, that discourages nationalism, indoctrinates globalism, and indoctrinates a hatred and shame in our history as a nation, through misrepresentation of actual history.

https://www.youtube.com/watch?v=YiscaFN5wP8

This is just the opening segment. But it still reveals the activism of openly anti-American groups at high school and college campuses nationwide. Including pro-Mexican nationalist movements to seize the U.S. southwest --including the Mexica movement-- which they regard as stolen from Mexico.
As I quoted in an earlier topic, Los Angeles mayor Villaraigossa is a member of the group, who has never renounced his membership. Gee, why is Los Angeles so laden with illegals? (90% of the outstanding warrants in L.A. are for illegal mexicans)

A recent Associated Press article said 70% of all illegals in the U.S. are mexicans.

And as Beck points out (about 4 minutes into the video) the propaganda posters for all these groups are blatantly communist, and clearly patterned after Soviet and Chinese propaganda posters, with similar rhetoric as their predecessors, and inconsistent with issues for which they advocate. Other than advocating revolution and the destruction of the United States and capitalism.