"AARO has found no credible evidence thus far of extraterrestrial activity, off-world technology, or objects that defy the known laws of physics. In the event sufficient scientific data were ever obtained that a UAP encounter can only be explained by extraterrestrial origin, we are committed to working with our interagency partners at NASA."
January 1, 1970
https://en.wikiquote.org/wiki/All-domain_Anomaly_Resolution_Office