Interception Devices: The Wiretap Act includes a prohibition on the manufacture or sale in interstate commerce of “any electronic, mechanical, or other

device … primarily useful for the purpose of the surreptitious interception of

wire, oral, or electronic communications.” 18 U.S.C. § 2512(1)(a). 

What does

this prohibition add to the prohibition on wiretapping itself? Is Spector

such a device?