Article Title: Postal Service Confirms Photographing All U.S. Mail
Snippet of Article: "...The information is then sent to the law enforcement agency that asked for it. Tens of thousands of pieces of mail each year undergo this scrutiny, and a number of law enforcement agencies have used it, like the Federal Bureau of Investigation, the Drug Enforcement Agency and the Department of Health and Human Services. Law enforcement officials called the mail covers an important investigative tool. ..."
Source: www.nytimes.com
