The PJ Tatler

Breaking: Eiffel Tower evacuated, 'suspicious package' found

Might be something, might be nothing.  But Gaddafi did threaten to target civilians to retaliate for the bombing campaign against his forces. And he has a long history of targeting civilians, going back several decades.

Update: Fox is reporting that there was a called in threat to blow up the Tower at 5 pm GMT, which was about an hour ago.