On this week’s Marketplace “Tech Bytes: Week in Review,” we’ll explore OpenAI’s inroads in higher education. Plus, how passengers can get on a waitlist to hail a driverless car in Austin, Texas. But first, a look at how Google is changing its approach to artificial intelligence. In 2018, the company published its “AI principles,” guidelines for how it believed AI should be built and used. Google originally included language that said it would not design or deploy AI to be used in weapons or surveillance. That language has now gone away. Google didn’t respond to our request for comment, but it did say in a blog post this week that companies and governments should work together to create AI that, among other things, supports national security. Marketplace’s Stephanie Hughes spoke with Natasha Mascarenhas, reporter at The Information, about these topics for this week’s “Tech Bytes.”

Congress considered 158 bills that mention artificial intelligence over the past two years, according to a count by the Brennan Center for Justice. But zero comprehensive AI laws have been passed. There has been movement by states, however. In Tennessee, for example, the ELVIS Act, which protects voices and likenesses from unauthorized use by AI, became law in March. In Colorado, a law that takes effect in 2026 requires developers of high-risk AI systems to protect consumers from algorithm-based discrimination. But some who fund AI technology say a federal law is needed. That includes Matt Perault, head of AI policy at the venture capital firm Andreessen Horowitz.

Among President Donald Trump’s many executive orders is one calling for a “next-generation missile defense shield.” The White House calls this the Iron Dome for America. The order says it should defend against all sorts of missile attacks and include “space-based interceptors” that could potentially act as both sensors and weapons. It reminded retired Air Force Maj. Gen. Robert Latiff of a Ronald Reagan-era program he worked on: the Strategic Defense Initiative, or SDI, known popularly, and especially to its critics, as “Star Wars.” Marketplace’s Stephanie Hughes spoke with Latiff about whether the U.S. has the technology, money and time to make this grand project work.