News item: Israel accuses Syria of using chemical weapons. Quote:
American intelligence agencies had yet to uncover convincing evidence that an attack on March 19, and smaller subsequent attacks, used sarin gas ... General Brun’s statements were the most definitive to date by an Israeli official regarding evidence of possible chemical weapons attacks on March 19 near Aleppo, Syria, and Damascus, the capital. Another military official, speaking on the condition of anonymity, said that the evidence had been presented to the Obama administration but that it had not fully accepted the analysis.
What happened on March 19?
A Reuters photographer said victims he had visited in Aleppo hospitals were suffering breathing problems and that people had said they could smell chlorine after the attack ... He quoted victims at the University of Aleppo hospital and the al-Rajaa hospital as saying people were dying in the streets and in their houses
According to Google Earth, both hospitals are in the Syrian-controlled part of Aleppo, a divided city. This means the victims likely came from the Syrian-controlled part of Aleppo, meaning that the Syrian-controlled zone was the target of the attack. This naturally means that the attack came from the other side.
So let's imagine some possibilities for why the Israelis are coming with this Colin Powell-quality information:
1. They have better intel than me.
We always have to consider this possibility.
If the Israeli report is false, this leaves us with other possibilities:
2. They really, really want to get rid of Assad
In this scenario, Israel's leaders gave the order that toppling the Assad regime would be their strategic objective and they haven't yet noticed that the alternative is worse. It's a simple case of wartime deception to get an ally to accomplish their objective for them.
3. They're following American orders
In this scenario, it is elements in the US government that want to remove Assad while Israel's leadership still thinks the Americans are on their side and will do whatever the Americans tell them to. The Americans tell them to launder this information and send it to the rest of the American leadership that is not yet on board with the plan. It's a complicated case of wartime deception, but not unprecedented. I remember hearing rumours of Rumsfeld planting stories about Iraq in the English and Canadian press so that the planted information would eventually reach politicians who were not yet in favour of the war, to get around a law against propagandizing the US public.
That's a short list of scenarios but it's all I can think of at the moment.