According to Pew Research, as of 2015, ~126,000 prisoners (state & federal) were held in private prisons[1]. As best I can tell, there are/were 2.2 million prisoners in the U.S. at the time. So about 5.7% of the prison population.
The SEC Chairman released a statement this morning about cryptos & ICOs. There is a mention of how an ICO can fall outside of the securities designation in the memo.
https://www.vanityfair.com/hollywood/2017/04/richard-gere-ho...