Based on title 18, U.S.C., 1940 ed., § 116 (Mar. 4, 1909, ch. 321, § 60, 35 Stat. 1099).

This section was extended to include radio and radio stations. Minor changes were made in phraseology.

2001—Pub. L. 107–56, in first par., struck out “or attempts willfully or maliciously to injure or destroy” after “Whoever willfully or maliciously injures or destroys” and inserted “or attempts or conspires to do such an act,” before “shall be fined”.

1994—Pub. L. 103–322, in first par., inserted “or attempts willfully or maliciously to injure or destroy” after “willfully or maliciously injures or destroys” and substituted “fined under this title” for “fined not more than $10,000”.

1961—Pub. L. 87–306 extended the provisions of the section to means of communication used or intended to be used for military or civil defense functions of the United States, made the provisions inapplicable to lawful strike activities, which do not injure any line or system used for such functions, and increased the punishment by fine from $1,000 to $10,000 and by imprisonment from 3 to 10 years.