Is because Syria did what it did,the Egyptians do not have a mind of their own and followed Syria. That is totally ridiculous. As is attempting to make Syria responsible for what Egypt does. That logic would mean because you are friends with America then America is responsible for Israel continuing the Occupation and illegal settlements and being at odds with the rest of the World. Every Nation is solely responsible for its own actions and predicaments.
from the article: How Israel is preparing to face the 'new' Syrian threat