It is evident that sections of the US establishment - academic, intelligence, military - have been seeing Israel as a liability rather than an asset. Israel has not won a single war in 40 years. And funding it is costing the US in political credibility. The Harvard study was only the beginning, the US will have to distance itself from Israel before it becomes a millstone round the american neck. Hence the new strain in relations.
Thousands protest outlawing of Islamic Movement in Umm al-Fahm in northern Israel (Haaretz)
from the article: Netanyahu thought he could take Obama, and lost