"But open robots also present the potential for inestimable legal liability, which may lead entrepreneurs and investors to abandon open robots in favor of products with more limited functionality . . . therefore recommends a selective immunity for manufacturers of open robotic platforms for what end users do with these platforms, akin to the immunity enjoyed under federal law by firearms manufacturers."
Source: Open Robotics by Ryan Calo, a senior research fellow at Stanford Law School and expert in robots and the law. Also see, “When Good Robots Do Bad Things: Responsibility and Liability in an Era of Personal and Service Robotics”