During Icos evrytime i see the following message: US citizens can not participate.
Why can't they?
The public sale of securities to American citizens is ruled by the SEC, rendering it illegal to perform it without their permission.
The U.S. Securities and Exchange Commission (SEC) is an independent, federal government agency responsible for protecting investors, maintaining fair and orderly functioning of securities markets, and facilitating capital formation. It was created by Congress in 1934 as the first federal regulator of securities markets. The SEC promotes full public disclosure, protects investors against fraudulent and manipulative practices in the market, and monitors corporate takeover actions in the United States.