It is time for Israel to understand that Israel's wants are not necessarily those that benefit the United States. In fact the US unwavering support for whatever Israel does has been a detriment to the US both monitarily and strategically. A new poll puts Israel almost at the bottom of countries that are viewed favorably. Maybe Obama wants to distance the US from a country that a majority of the world's people view as unfavorable.
Saudis warns U.S. that 9/11 responsibility law would erode investor confidence in America (Reuters)
from the article: Obama’s counter-terrorism speech may alarm Israeli policy makers