Comments like these by US officials highlight a feebleness unbefitting a great power. If this were any other country except Israel this statement would have been accompanied by a threat of sanctions or worse. Since it is clear that Israel will do absolutely nothing the world's sole superpower is exposing itself to international ridicule.
In Qatar, Kerry seeks to convince Gulf Arabs on Iran deal (Reuters)
from the article: U.S. 'deeply concerned' about Israel settlement expansion