[GrandEagle]

Writing for the court, Justice Antonin Scalia said police can obtain such a warrant prior to the actual commission of a crime as long as they have probable cause to believe an individual will commit a crime -- or that illegal material will be at the individual's property when the search is conducted.

I will agree that placing an order for child porn could be probable cause for a search warrant to look for other similar "material".
I have STRONG opposition to "as they have probable cause to believe an individual will commit a crime" as being probable cause for anything. That is just anti-American.
The fact that he ordered this stuff could be probable cause to believe that he has already commited the crime before, and I could go with a search warrant to look.

Cordially,
GE

[FormerLib]

I have STRONG opposition to "as they have probable cause to believe an individual will commit a crime" as being probable cause for anything.

Huh? Probable cause for "anything" is irrelevant if the "anything" isn't a criminal action.