The claim that those lines are condensation trails does not hold up even under the mildest scrutiny, yet our public officials continue parroting this childish claim.
There is no excuse morally or legally. Those who fail to look at the evidence and choose to continue to hold to simplistic, unscientific explanations are not guiltless. In fact, they are preventing the crime from being discovered and - at least morally - are just as guilty as if they were performing the spraying themselves.
Kindly and professionally, remind public officials about willful blindness the next them you present them with evidence exposing the largest crime against humanity in human history. By their own will, or by the force of law and public pressure, they will be held accountable so long as you tell them, but you must tell them.