Google has removed a key section from its AI principles that pledged not to develop AI technologies that could cause harm, including weapons systems. The change aligns Google with a broader trend in the AI industry, where leading tech firms are increasingly working with the defense sector. The policy shift comes as AI is proving invaluable in threat detection and assessment for the US Department of Defense. The political climate in Washington is also driving a shift in Silicon Valley, with tech companies prioritizing national security and US geopolitical interests over human rights and ethical AI development.