District (not exceeding ten Miles square) as may, by Cession of
Particular States, and the Acceptance of Congress, become the Seat of
the Government of the United States, and to exercise like Authority over
all Places purchased by the Consent of the Legislature of the State in
which the Same shall be, for the Erection of Forts, Magazines, Arsenals,
dock-Yards, and other needful Buildings;--And

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 Officer thereof.

Section. 9. 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.

The Privilege of the Writ of Habeas Corpus shall not be suspended,
unless when in Cases of Rebellion or Invasion the public Safety may
require it.

No Bill of Attainder or ex post facto Law shall be passed.

No Capitation, or other direct, Tax shall be laid, unless in Proportion
to the Census or Enumeration herein before directed to be taken.

No Tax or Duty shall be laid on Articles exported from any State.

No Preference shall be given by any Regulation of Commerce or Revenue to