As to lawyers checking potential jurors' profiles
The judge is right. And I think that Googling a juror's personal life should ALWAYS be banned in any trial. Juries for some cases, particularly RICO cases, are already completely anonymous, for obvious reasons. This privacy protection should be extended to all juries. It's fair game to ask them questions about what sort of work they do and their opinions on matters that could affect the case, but I strongly feel that their personal identity should never be reveled to anyone outside the court itself. Ever.