WASHINGTON (Reuters) -The new head of the U.S. Securities and Exchange Commission on Friday said that the agency has stifled innovation for the cryptocurrency sector by fostering "regulatory uncertainty" in prior years. "Market participants engaging in this technology deserve clear regulatory rules of the road," Paul Atkins said in his first remarks since being sworn in as chairman of the agency as chairman earlier this week. He spoked at the SEC's crypto roundtable, which the Republican leadership launched weigh how securities laws may apply to digital assets, an area of tension between the sector and the agency under previous leadership.