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 a USPS service that allows you to confirm delivery. The Postal Service keeps certified mail proof of delivery records for two years. When you send certified mail, you get a receipt that can be useful if you are mailing a legal, financial or other document that must meet a deadline.