(a) A person commits the offense of making a terrorist threat if, with the purpose to intimidate or coerce a civilian population or to influence the policy of a government or a unit of government by intimidation or coercion, the person in any manner knowingly threatens to commit or causes to be committed a terrorist act and thereby causes a reasonable expectation or fear of the imminent commission of a terrorist act or of another terrorist act.
(b) It is not a defense to a prosecution under this section that at the time the person made the terrorist threat, unknown to him or her it was impossible to carry out the threat, nor is it a defense that the threat was not made to a person who was a subject or intended victim of the threatened act.
(c) Making a terrorist threat is a Class A felony.