What prompted frenzied rumors in Israel of an imminent attack on Iran?

Israelis are all of a sudden plunged into hot debate on the pros and cons of an IDF attack on Iran's nuclear sites. It was triggered by a report that the attack would go forward before winter. A senior cabinet minister then admitted he had sleepless nights over the 100,000 Syrian, Hizballah and Hamas rockets awaiting Israel when the attack begins.
So what is really going on? And what game plan?
The last  DEBKA-Net-Weekly provided some answers.
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