The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized.
Constitution of the United States of America 1789 (rev. 1992)
On the FBI/Apple dispute over the San Bernardino iPhone:
BRENNAN: What would people say if a bank had a safe-deposit box, or a storage company had a storage bin, that individuals could use and access and store things, but the government was not going to be able to have any access to those environments? And so criminals, terrorists, whatever, could use it. So what is it about electronic communications that makes it unique in terms of it not being allowed to be accessed by the government when, again, the law, the courts, say that the government should have access to it? So these are things that need to be worked through.
From the NPR website: U.S. Spy Chief On Apple, ISIS And His Future At The CIA
February 24, 20165:01 AM ET