### Question
How is the term national security letter defined?


### Answer
The term **national security letter** is defined in *50 U.S.C. § 1873* as the following:

> a request for a report, records, or other information under—


(A) section 2709 of title 18

#### Citation:
  - *50 U.S.C. § 1873*
  - Heading: **CHAPTER 36-FOREIGN INTELLIGENCE SURVEILLANCE > SUBCHAPTER V-OVERSIGHT**

