Last Friday, a massive group of Muslims crowded into Sydney, Australia’s Hyde Park to add their voices to the violent protests which began on Sept. 11 and spread throughout the week to as many as 21 countries. Among the most sickening sights: toddlers holding up signs reading, “Behead all those who insult the prophet.”

It looks as though the U.S. consulate is anticipating a repeat performance this weekend and has warned Americans to avoid the central business districts of both Sydney and Melbourne.

American are spreading the word via social media.

At least in this instance the warnings were issued ahead of time — the State Department’s tweet warning of protests in Indonesia was issued hours after things had turned violent there. It’s a little late for the Obama administration to be getting a handle on foreign threats, but at least it’s progress.