U.S. Rep. Yvette Clarke (D-Crown Heights, Brownsville  East Flatbush, Flatbush, Kensington, Park Slope, Prospect Heights, Midwood, Sheepshead Bay, Marine Park, Gerritsen Beach, Prospect Lefferts Gardens) yesterday began to address a touchy subject – that a majority of the recent alleged anti-Semitic attacks in the Crown Heights section of her district involves black youth physically assaulting religious Jews.