What is the scope of the search for suspicious packages in the context of a "suspicious package" search?

Thus, unless we say, as a matter of law, the packages searched are not, and cannot be, considered "trunks or envelopes,"¹² or, that this is not geographically a "border search," despite the statutory language "wherever found" and the cases cited in the above quotation, the majority opinion is, in my opinion, in error in failing to pass on the "precise meaning" of the statute, and in relying solely, and I submit, wrongly, on Boyd v. United States, 116 U.S. 616, 623, 6 S.Ct. 524, 29 L.Ed. 746 (1886).