Without a clear example, this concern should be treated as too vague to be actionable or relevant. This is like claiming, “windshield wipers could cause unknown effects on drivers’ ability to operate vehicles safely.” Okay, so what would be an example? Maybe, “Windshield wipers could cause drivers to fall under hypnosis.” Ah, then let’s make sure nothing bad happens by testing, but let’s also weigh doing that against all of the accidents that absolutely will happen otherwise whenever it rains.