U.S.C.
Title 18: Crimes and Criminal Procedure
Part 1: Crimes
Chapter 41: Extortion and Threats

Sec. 875. Interstate communications 

(a) Whoever transmits in interstate or foreign commerce any communication
    containing any demand or request for a ransom or reward for the release
    of any kidnapped person, shall be fined under this title or imprisoned 
    not more than twenty years, or both. 

(b) Whoever, with intent to extort from any person, firm, association, or
    corporation, any money or other thing of value, transmits in interstate
    or foreign commerce any communication containing any threat to kidnap
    any person or any threat to injure the person of another, shall be
    fined under this title or imprisoned not more than twenty years, or
    both. 

(c) Whoever transmits in interstate or foreign commerce any communication
    containing any threat to kidnap any person or any threat to injure the
    person of another, shall be fined under this title or imprisoned not
    more than five years, or both. 

(d) Whoever, with intent to extort from any person, firm, association, or
    corporation, any money or other thing of value, transmits in interstate
    or foreign commerce any communication containing any threat to injure
    the property or reputation of the addressee or of another or the
    reputation of a deceased person or any threat to accuse the addressee
    or any other person of a crime, shall be fined under this title or
    imprisoned not more than two years, or both. 


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