US hypothesis Nr. 1: Israel does not attack civilians and civilian infrastructure.
US hypothesis Nr. 2: The US "is concerned for the personal safety of American citizens due to the current security situation in Lebanon" because "major roads … are subject to an air strike at any time" (according to an email I received from the US Dept of State)
In short, Americans in Lebanon are in danger of being hit by an Israeli bomb.
US hypothesis Nr. 3: We must evacuate all American civilians.
We must evacuate all American civilians, for they are in danger of being attacked by Israel, which does not attack civilians.
The American civilians who are in danger must all be human shields for Hezbollah or hiding Katyushas under their beds. Why, oh why, would they be in danger, if Israel is attacking Hezbollah, rather than everything that moves?