[1/2] Committee chairman U.S. Rep. Mike Gallagher (R-WI) listens during a House Select Committee on the Strategic Competition Between the United States and the Chinese Communist Party meeting on "Taiwan Tabletop Exercise (TTX)," a war games simulation, on Capitol Hill in Washington, U.S., April 19,… Read more WASHINGTON, May 23 (Reuters) – The U.S. Commerce Department should add Chinese memory chip maker Changxin Memory Technologies (CXMT) to a trade blacklist after Beijing earlier this week banned the sale of some chips by U.S.-based Micron Technology Inc (MU.O), the chair of the U.S. House of Representatives' committee on China said on…