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 the ports of one state over those of another; nor shall vessels bound to, or from, one state, be obliged to enter, clear, or pay duties in another. no money shall be drawn from the treasury, but in consequence of appropriations made by law; and a regular statement and account of the receipts and expenditures of all public money shall be published from time to time. the provisions above, all included in the u. s. constitution, are designed to uphold the principle