&gt; What historically have been the exceptions to what the government can seize with authorization from a judicial warrant?<p>I don&#x27;t know that there are many exceptions once you have a warrant, but there is definitely a preference to use subpoenas when possible.<p>(I&#x27;ll note though that I probably don&#x27;t know more about this, most of my knowledge just comes from reading Jeffrey Rosen books on privacy law.)