The USIA: United Sigma Intelligence Association is, as an international think tank, a non-profit high intelligence organization higher than the Mensa of 2 sigma and Mega Society of 4.8 sigma. The USIA is a 3 sigma, 4 sigma, and 5 sigma intelligence umbrella society, which was founded in 2007 by Dr. Hankyung Lee, M.D.


“All men by nature desire to know.” — Aristotle

“The object of knowledge is what exists and its function to know about reality.” — Plato