Article 1 Section 9 U.S. Constitution . Important after Trump signs CARE bill today. It's on! WWG1WGA ! Article 1 Section 9 here.  What's relevant?  Clause 2: "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." Q drop 3900 here.