Just so YOU are clear what you're saying (since I have reason to believe that in your case neither English nor American culture are native):
TRAITOR: a person who commits treason by betraying his or her country.
TREASON:
1. the offense of acting to overthrow one's government or to harm or kill its sovereign.
2. a violation of allegiance to one's sovereign or to one's state.
Treason was the ONLY crime defined in the text of our Constitution.
Treason against the United States, shall consist only in levying War against them, or in adhering to their Enemies, giving them Aid and Comfort. No Person shall be convicted of Treason unless on the Testimony of two Witnesses to the same overt Act, or on Confession in open Court.
The Congress shall have Power to declare the Punishment of Treason, but no Attainder of Treason shall work Corruption of Blood, or Forfeiture except during the Life of the Person attainted.
The punishment for treason in US law is death.