I would not concern myself with what Samantha Power has to say in this regard. Her anti-Israel hostility is well known and she is as about as objective and credibile as that non-entity Christine Chinkin of the Goldstone Commission. Beware Israel of some of these fools in the Obama administration.
UN warns Turkey against calling buffer a 'safe zone' unless guarantees civilians' safety (Reuters)
from the article: U.S.: Easing Gaza siege would help counter Goldstone