Read all about it.
"When the government orders people not to talk about what it's
doing, it's hard to keep track of what it's doing. That's what the
First Amendment is intended to prevent. It's ironic that the Obama administration — whose supporters in 2008 made much of threats to civil liberties from George W. Bush's national security apparatus — has so thoroughly embraced surveillance and gag orders.
if it won't support a prosecution, why gather this information?"
"Bharara's office isn't talking, but I suspect that the purpose of this
exercise is to chill speech: To send a signal that whether or not the
First Amendment protects your right to talk smack about a federal judge,
you'd be wise not to do so if you don't want to attract the attention
of the feds, who might choose to share your information with employers
or the news media. Consider it a sort of prosecutorial brush-back
pitch, if you like."
("Nice job/office/life you got there...would be a real shame if anything happened to it..."
"Of course, the First Amendment term for
"brush-back pitch" is "chilling effect." The goal, presumably, is to
discourage speech protected under the First Amendment, but disliked by
authorities. That's an odd thing from a prosecutor who is sworn to
uphold the Constitution — but, these days, perhaps not as odd as all that."