UNITED STATES V. MOHAMUD 41 a target inevitably returns communications in which nontargets are on the other end, some of whom will be U.S. persons. Such ‘incidental’ collection of communications is not accidental, nor is it inadvertent.” PCLOB Report at 82; see also Laura K. Donohue, Section 702 and the Collection of International Telephone and Internet Content, 38 Harv. J.L. & Pub. Pol’y 117, 159–64, 259–62 (2015) (discussing the relative volume and intrusiveness of surveillance authorized under § 702). The fact that the government knew some U.S. persons’ communications would be swept up during foreign intelligence gathering does not make such collection any more unlawful in this context than in the Title III or traditional FISA context. Mohamud and Amici also contend that the “sheer amount of ‘incidental’ collection” separates § 702 from prior cases where courts have found such collection permissible. We agree with the district court’s observation that the most troubling aspect of this “incidental” collection is not whether such collection was anticipated, but rather its volume, which is vast, not de minimis. See PCLOB Report at 114 (“The term ‘incidental’ is appropriate because such collection is not accidental or inadvertent, but rather is an anticipated collateral result of monitoring an overseas target. But the term should not be understood to suggest that such collection is infrequent or that it is an inconsequential part of the Section 702 program.”). This quantity distinguishes § 702 collection from Title III and traditional FISA interceptions. However, the mere fact that more communications are being collected incidentally does not make it unconstitutional to apply the same approach to § 702 collection, though it does