An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock ( ) or https://
means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
This site is currently in beta, and your feedback is helping shape its ongoing development.
UK BT data processed during the last 2 years is contained in the enclosed magnetic tape. There are 16370 observations recorded in 71,334 card images blocked in 506 word blocks in the NATO...