GERMANTOWN, Md. (WUSA) -- National anti-abortion activists are planning to lay siege to a Gemantown clinic as a Nebraska doctor who performs controversial late-term abortions is planning to see patients there. "We're going to show our outrage at this," said Troy Newman of Operation Rescue from the group's Kansas headquarters. Newman is planning a press conference and protest Monday. Dr. Leroy Carhart is the most prominent of the handful of doctors in the U.S. who perform late-term abortions on women up to 26-weeks pregnant. He has been the subject of death threats and protests. His colleague Dr. George Tiller was murdered in Kansas last year. Carhart is moving his late-term abortion practice to other states after Nebraska outlawed the procedure. A spokesman for the Germantown Reproductive Health Services clinic announced Carhart would begin seeing patients there next week.