Editor's note: We are updating this article as this story develops. Last updated at 2:30 pm Eastern Time. Israel launched airstrikes targeting Hamas leaders in Doha, Qatar, a major non-NATO ally that hosts the largest U.S. military base in the Middle East, which houses at least 10,000 American troops. The attack appears to be the first ever Israeli airstrike on the territory of an Arab Persian Gulf state. The bombing killed several Hamas staffers, but the group's negotiating team survived, ac...