psyop-military actions designed to influence the perceptions and attitudes of individuals, groups, and foreign governments.
Choose certified mail when you need proof of delivery and time is of the essence. Registered mail is the Postal Service's most secure form of mail delivery, involving an unbroken chain of custody. Registered mail is protected in sealed containers, safes and cages, and held under lock and key.
Certified Mail is only available for Priority Mail and First Class Mail letters mailed within the United States and its territories (including APOs and FPOs). Each piece of Certified Mail is assigned a unique label number which serves as an official record of mailing of the item by the Postal Service.