The Alaska Mental Health Enabling Act of 1956 was an Act of Congress passed to improve mental health care in the United States territory of Alaska. It became the focus of a major political controversy after opponents nicknamed it the "Siberia Bill" and denounced it as being part of a communist plot to hospitalize and brainwash Americans. Campaigners asserted that it was part of an international Jewish, Roman Catholic or psychiatric conspiracy intended to establish United Nations-run concentration camps in the United States.

Morningside Hospital was a psychiatric hospital in Portland, Oregon, United States. The hospital was contracted to provide care for people committed to psychiatric hospitals from Alaska from 1904 to 1960.