Our brains are wired such that it's difficult to take action until we feel at least some level of this emotional state. In fact, performance peaks under the heightened activation that comes with moderate levels of stress. As long as the stress isn't prolonged, it's harmless.
Federal law should hold organizations like the League of Women Voters harmless if they make good-faith mistakes while registering people.
While many alien species are harmless, others pose expensive threats to seas and fields and forests.