 Complete the following phrase:  A palace informant reported that the signing of the agreement had split the Ngo family. Madame Nhu, the sister-in-law of Diệm and de facto First Lady, reportedly attacked Diệm for cowardice. She reputedly called him a jellyfish for agreeing to negotiate with the Buddhists, noting that he had militarily crushed the private armies of the Cao Đài and Hòa Hảo sects and the Bình Xuyên organized crime gang in 1955, and a 