
Generally speaking, the government can ask for background checks for employees of defense contractors. 
But are there limits to what the government can ask? At what point —  if at all — does a government query into the drug use history of a  low-level employee violate that employee’s constitutional right to  privacy?
 An interesting question, and one that eight Supreme Court justices  were called upon to ponder today down at One First St., N.E. (As  Solicitor General, Justice Kagan weighed in on behalf of the government;  thus she has recused herself from hearing the case as a justice.)
 According to this account  by the LA Times’s David Savage, the justices gave a “skeptical hearing”  to the 28 Caltech scientists challenging the government’s use of  background checks. Caltech runs the Jet Propulsion Laboratory under a  contract with NASA. Click here for the transcript of the arguments.
 The scientists won at the Ninth Circuit, which held that questions violated their constitutional right to privacy.
 According to Savage’s story, the justices all (with the possible  exception of Justice Sonia Sotomayor) sounded as if the were inclined to  uphold the background checks.
 That said, they explored the limits of what the government should be  allowed to ask. Justice Antonin Scalia, staying true to his “textualist”  method of constitutional interpretation, said there was no such privacy  right. “I don’t see it anywhere in the Constitution,” he told Dan Stormer, a Pasadena lawyer who represented the Caltech employees.
 Chief Justice John Roberts and Justice Samuel Alito said they would  not close the door to all such claims. “Isn’t there some right to tell  the government: ‘That’s none of your business’?” Roberts commented.
 Alito said he questioned whether the government could ask people to  fill out forms revealing what they ate, what they read or whether they  smoked cigarettes and to describe their sex lives. “Is that OK?” he  pressed Neal Katyal, the acting U.S. solicitor general.
 Probably not, Katyal agreed, but he urged the justices to rule that  the government can ask open-ended questions of its employees and  contract workers.
Read more here.