WASHINGTON — President Joe Biden’s directive to all U.S. national security agencies to embed artificial intelligence technologies in their systems sets ambitious targets amid a volatile political environment. That’s the first-blush assessment from technology experts after Biden on Oct. 24 directed a broad swath of organizations to harness AI responsibly, even as the technology is rapidly advancing. “It’s like trying to assemble a plane while you’re in the middle of flying it,” said Josh Wallin,