Although not out of the realm of possibility, the likelihood of this being done as a "false flag" attack approaches zero. If it looks like sh*t, smells like sh*t, and tastes like sh*t, chances are pretty high that it is sh*t. The radical wing of the settler communities, dating back to the days of Meir Kahane (I won't dignify him by calling him a Rabbi) has a long history of violence towards anyone opposed to them, Jews and Arab alike. This type of activity is far more dangerous and insidious than any Arab terror, for it represents a corruption of the Jewish soul of Israel.
Red Cross: Scale of sexual violence in South Sudan is unprecedented (Reuters)
from the article: Israel Police arrest suspect in Galilee mosque arson