Former Postal Inspector Discusses Mail Screening Process

USPS test: We mailed 4 packages with GPS trackers to see how quickly they got there

How mail agencies identify suspicious packages

How USPS Sorts Mail

USPS says sending checks through the mail is secure

Good Question: How does the post office deliver mail?

How local police and USPS respond to suspicious packages

We are the U.S. Postal Inspection Service

USPS Lets You Check Your Mail Before You Open The Mailbox - Newsy

USPS Inspection Service, police investigate string of mail thefts around Philadelphia

REALITY CHECK: USPS sells your 'lost' packages - NBC 15 WPMI

New USPS services let you check mail before it arrives

How the US Postal Service reads terrible handwriting

How Much Does A USPS Postman Make?

USPS Click-N-Ship®

USPS app shows you what's coming in the mail

How Customs At JFK Searches 1 Million Mail Packages A Day

Why Drug Dealers are Choosing the United States Postal Service - Cheddar Explains

USPS customer believes mail carrier cashed his $3,000 check

History of the U.S. Postal Inspection Service