WASHINGTON (AP) — President Joe Biden says he plans to deliver a message to Russian President Vladimir Putin about the latest ransomware attacks targeting American businesses. It’s a conversation that could test Biden’s ability to follow through on a promise to answer such attacks with a tough response while also trying to avoid escalating tensions with Russia. The administration faces few easy options for a threat that in just a few months has emerged as a major national security challenge, with attacks from Russia-based gangs that have targeted vital infrastructure and extorted multimillion-dollar payments from victims. Biden was opaque when asked Wednesday what exactly he planned to convey to Putin.