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.
Related Articles. As a small-business owner, understanding the mail services offered by the United States Postal Service can help you quickly select the right service for your mailing needs. Certified Mail and Registered Mail are two USPS services that provide proof that an envelope or package reached its destination.