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.
In some states, service by certified (or registered) mail is one among several ways you may serve papers. Other states require you to try service by certified mail first, before any other method of service. Normally, the court clerk does the mailing for you and charges a small fee. This is recoverable if you win.