Two top officials with the Internet giant Yahoo were called before Congress Tuesday to testify on their role in the jailing of a Chinese journalist. Shi Tao was sentenced to 10 years after Yahoo passed on his email and Internet protocol address to Chinese officials. Speaking before the House Foreign Affairs Committee, Yahoo CEO Jerry Yang and General Counsel Michael Callahan defended Yahoo’s role. Shi Tao’s mother was sitting in the room. At the urging of Congressmember Tom Lantos, Yang and Callahan bowed their heads to her in apology. Lantos told the pair: “While technologically and financially you are giants, morally you are pygmies.”