The Sinai was not Israel's to give away. Israel had no Sovereignty over the Sinai. It belonged to Egypt and as Israel occupied it ,under International Law Israel was compelled to return it to Egypt. Just like Palestinian Territory. It gets returned to Palestinians. Israel has no Sovereignty rights over Palestinian Territory.
Ofir Akunis officially replaces Danny Danon as minister of science, technology, and space (Haaretz)
from the article: Will 2013 be the year American Jews secede from Israel?