In 18 U.S.C. § 1752(a)(1), (3) and (4), "willfully" and "knowingly" precede the description of activities prohibited thereunder. This clearly limits the reach of those provisions to acts of entering, remaining, obstructing, impeding, or engaging in physical violence, resulting from the deliberate informed decision of the defendant to take such actions. Accordingly, the statute would not apply to an individual who is actually ignorant of the fact of the designation or restriction.
[cited in JM 9-65.400]