If they "rescind they obligations" it is akin to saying "yeah, you caught us, so now we don't want to play anymore". Such an act would surely bring on the whole world against them, for it is the same as admitting they're doing something they shouldn't. Think.
Wounded Israelis in suspected car-ramming attack in West Bank are soldiers (Haaretz)
from the article: IAEA will not tie Israel's nuclear program with Iran, sources say