Another helped Chinese police track down a dissident journalist. Yahoo official Michael Callahan said the firms must choose between complying with Chinese law or leaving the country.

• 雅虎则帮助中国警方跟踪并最终找到一名持异议立场的记者。雅虎负责人卡拉汉说，公司必须在遵守中国法律或者退出中国市场之间做出选择。