It didn't make big news but a similar looking blood thirsty mob of about 2000 Pro Assad demonstrators attacked the US embassy there last month. It was quite embarrassing for the White House and State Department who had just a few months earlier called Assad "a great reformer" and saw him as someone they can play ball with. Thank goodness no one was harmed in either incident.
U.S. State Dept. condemns 'vicious terrorist attack' that killed Palestinian infant (Haaretz)
from the article: Attack on Israeli embassy unites Egypt in surprising ways