[Drew68]

A bizarre ruling with no basis in constitutional law.

Please elaborate. How is this bizarre? Does the government have a right to know what books I've purchased? Should booksellers compile a database on who bought what?

[spqrzilla9]

There is no "right" to purchase books anonymously. And there isn't a "right" to hide whether or not you bought a particular book when that book is linked to a criminal act, as is the case here.