Gilad Korinaldi, the lawyer representing archaeologist Meir Ben-Dov and other experts, is trying to warn the government about the potential cultural damage that would be caused by adopting the expanded Kotel plan.The article lists all the signatories and confirms that Dr. Ayelet Mazar is one of them.
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"The government's decision to do a 'copy-paste' in creating a new Kotel while covering archaeological finds from the First and Second Temples, including a magnificent Herodian road, stands in complete contrast to international conventions on maintaining historic sites that the State of Israel initiated and signed at the United Nations."
Korinaldi also stated that senior archaeologists have submitted a petition to Prime Minister Netanyahu, which has not yet been publicly released.
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Background here and links.