Such a move would also raise First Amendment issues.
Mr. Russianoff said the proposed ban on picture-taking could raise First Amendment issues as well.
Mr. Cantor claimed in particular that the registration language was overly vague and might even raise First Amendment issues.
Aides to both Ms. Davis and Mrs. Feinstein said such provisions might raise First Amendment or states' rights challenges.
In a 2012 case involving GPS trackers, however, the Supreme Court suggested that the long-term, automated collection of people's public movements might raise Fourth Amendment issues.
They suggested that the automated long-term collection of data about someone's location might raise Fourth Amendment issues even though each individual movement is disclosed to other people.
But in a 2012 case about the police's use of a GPS tracker attached to a suspect's car, five justices suggested that any long-term, automated collection of a person's publicly displayed actions might raise Fourth Amendment issues.
If, for instance, Muris carries out a veiled threat to sue newspapers or television stations in an attempt to force action, that would raise First Amendment concerns.
The U.S. does not label domestic extremist groups as terrorist organizations, as banning Americans from supporting U.S.-based organizations would raise First Amendment issues.
Suppose we didn't impose the tax on porn film producers, since that might raise First Amendment questions, or directly on viewers of "sexually-oriented material".
