I think it is a good thing that the IDF is procuring F35's. I wonder if it would be a better idea for the USAF to review the IDF's requests for electronic upgrades to IDF standards, as these 'may be' ? better that the USAF's current. I would hope the IAF shares some of it's own high tech helping it's dear friend the USA & saving some US development dollars. The Israel Defence Industry is quite sophisticated & close co-op is good for all. I was very pleased with the way US Marines adopted IDF techniques in close quarter (house to house)fighting in Fallugah...many Marine lives were saved thanks to the IDF!!!
U.S.-led coalition conducts 13 airstrikes against ISIS targets in Syria, Iraq (Reuters)
from the article: U.S. may allow Israeli upgrades to F-35 fighter jet