FINRA warns brokerages not to push leveraged ETFs on retail customers

From Investment News:

...the company decided to prohibit the sale of leveraged ETFs that seek more than two times the long or short performance of the target index, said spokesman Joseph Kuo.

Don't know what a leveraged ETF is but would still "invest" in them? I have an idea for an investment fund that simply "invests" in lottery tickets. When you "retire", you find out how much $$$ you have.