Palantir was valued at more than $20 billion in the Wall Street debut Wednesday for the secretive data analytics giant specializing in national security and law enforcement. The shares under the symbol PLTR opened at $10, equating to a market value of $21.7 billion, and drifted higher in the ensuing trades. The debut came without fanfare, as the trade opened with no splashy bell-ringing event for Palantir at the New York Stock Exchange. The company, created in Silicon Valley and recently relocated to Denver, has argued that its tech platform helps catch terrorists and keep people safe. But some activists argue that Palantir's technology -- which scoops up financial records, social media posts, call records and internet records -- enables unprecedented opportunities for mass surveillance with little oversight on privacy and fundamental rights. jum-rl/bgs