The word "contents" is defined in 18 U.S.C. § 2510(8) to
any information concerning the substance, purport, or meaning of any wire,
or electronic communication. It is significant that this definition does
include the identity of the parties or the existence of the communication.
definition distinguishes between the substance, purport, or meaning of the
communication, and the existence of the communication or transactional
about it. See S.Rep. No. 541, 99th Cong., 2d Sess. 13 (1986).|
[cited in USAM 9-60.200]