Following an Israeli airstrike which killed several foreign aid workers in the Gaza Strip, US President Joe Biden on Tuesday sharply rebuked Israel. “This is not a stand-alone incident,” Biden said in a written statement on Tuesday evening. “This conflict has been one of the worst in recent memory in terms of how many aid workers have been killed,” Biden said, adding that this is one of the main reasons why the distribution of humanitarian aid in the Gaza Strip is so difficult. “Israel has not done enough to protect aid workers trying to deliver desperately needed help to civilians,” Biden sai…