18. To make all laws which shall be necessary and proper for carrying
into execution the foregoing powers, and all other powers vested by this
Constitution in the government of the United States, or in any
department or office thereof.
SECT. IX. 1. The migration or importation of such persons as any of the
States now existing shall think proper to admit shall not be prohibited
by the Congress prior to the year one thousand eight hundred and eight;
but a tax or duty may be imposed on such importation, not exceeding ten
dollars for each person.
2. The privilege of the writ of habeas corpus shall not be suspended,