My educated guess, for what it's worth - A combination of all three plus Puerto Rico.

Link:http://kingworldnews.com/gerald-celente-was-the-suspicious-nyse-trading-halt-an-attempt-to-stop-a-crash-in-u-s-markets/

Comment:

When you manipulate markets, you have to understand human nature and be in control of it as well, otherwise, sooner or later, you're going to lose control.

This is what I feel was really behind the shutting down of the NYSE yesterday.

Today? I expect the market to recover somewhat, but going forward - look out.

"We live in interesting times"

Good Luck to all!