PowerPoint presentations from Chinese telecommunications giant Huawei Technologies indicate that the company has a larger role in China's surveillance efforts than was previously known, according to The Washington Post . The Post reviewed over 100 Huawei PowerPoint presentations, many of them labeled "confidential," in which the company detailed how the government could use its technologies to identify voices, track people for political purposes and monitor the movements of inmates within prisons, among other surveillance tactics. "Huawei has no knowledge of the projects mentioned in the Washington Post report," the company said in a statement to the newspaper. "Like all other...