U.S. Capitol on alert over "possible plot" for March 4 attack

Photo taken on March 3, 2021 shows the U.S. Capitol building in Washington, D.C., the United States. U.S. Capitol Police said on Wednesday that it has learned of a "possible plot to breach the Capitol" by a militia group driven by a conspiracy theory suggesting former President Donald Trump would return to power on March 4. (Xinhua/Liu Jie)