이런 법이 있습니다.
경찰에 신고하세요.
(경찰이 협조 안해주더라도 일단 경찰서에 가서 police report를 하세요)
18 U.S. Code § 1702. Obstruction of correspondence
“Whoever takes any letter, postal card, or package out of any post office or any authorized depository for mail matter, or from any letter or mail carrier, or which has been in any post office or authorized depository, or in the custody of any letter or mail carrier, before it has been delivered to the person to whom it was directed, with design to obstruct the correspondence, or to pry into the business or secrets of another, or opens, secretes, embezzles, or destroys the same, shall be fined under this title or imprisoned not more than five years, or both.”