WASHINGTON — When President Joe Biden said he was “outraged and heartbroken” about the killing of seven World Central Kitchen aid workers in Gaza, his forceful language raised a natural question: Would this strike, even if a tragic error, lead him to put conditions on the weapons he sends to Israel? So far, the White House has been silent on whether Biden’s anger is leading to a breaking point with Prime Minister Benjamin Netanyahu, with whom every interaction has been tense. The two are schedul