Kenya went into Somalia with the US' blessing first, so you don't need to go into Kenya you're already there.
Somalia has not had a central government for two decades. It has no national policy because there is no national government. What you have are tribal leaders and warlords, who have been attacking Kenya for a very long time.
The reason these groups attack places like that is because of their political meddling not because of religion. It's the same everywhere around the world. Even suicide bombings, who started it and why? The qur'an teaches us against suicide but people do it out of political tension and desperation when their voices are not being heard and they are being oppressed they turn to violence as the last resort.
How can you say that the attack was "not because of religion" when al-Shabab explicitly excluded Muslims from their massacre?
And yes, tell us who started the suicide bombings now perpetrated by Muslims. Very interested in your answer.
Apparently "Israeli advisors on the ground" are helping Kenyans in this 'situation'.
Israel is there because they have a lot of experience with Muslim hostage-taking.
Israel was also in Thailand to assist with the aftermath of the tsunami and in Japan to help rescue victims of the Tohoku earthquake, as were many other countries.
What is your point?
Chances are if the Kenyan troops did not invade and install a puppet regime with Ethiopia through US proxy warfare, shit like this wouldn't be happening to innoscent people as it's happening to innoscent people in Somalia at the hands of Ethiopian and Kenyan troops backed with the blessing of the United States of America.
"Chances are?" So you admit you are speculating without evidence. Beyond that, the US does not target innocent people. Muslim terrorists do. I do not think there is much debate on that. For example, the US and its allies warned the Taliban (who governed Afghanistan at the time) to give up Bin Laden or face massive force to neutralize the terrorist activities originating in that country. An attack occurred when they refused.
What's in it for Kenya? Money, the flow of drugs from Kenya to Somalia and Yemen which Islamic groups banned under their rule but US backed puppet regimes allow yet again. Loads and loads of drugs.
Maybe some Islamic groups banned drugs, but many Muslims are involved in the drug trade. Especially the Taliban. They simply took control of it in Afghanistan, and once they were flushed out of that country, are now planting poppies in Pakistan.
Take a look at this (one of many reports on it):
http://www.usip.org/sites/default/files/resources/taliban_opium_1.pdf