As the United States begins implementing travel restrictions on Russian officials involved in the military occupation and annexation of Crimea, there are signs that the State Department has been quietly denying visas to Israeli military and intelligence officials in accordance with a separate set of U.S. laws.
In recent weeks, a number of Israeli news publications have reported an increase in the denial of visa requests to Israeli youth, military, and intelligence officials. Much of the reporting has focused on speculation that the restrictions are a move by the Obama administration to thwart Israel's entry into the Visa Waiver Program ...
http://mondoweiss.net/2014/03/imposing-sanctions-officials.html
That's a broad overview, which covers a couple of different categories of travelers (defense and security personnel, versus young tourists and/or petty con artists). Here's something specifically on the former:
Ironically, some of the defense officials who were denied entry to the United States during the last few weeks were supposed to discuss with American companies on exports from the US to Israel (funded by the military aid money), and defense sources said that if the US does not allow their entry they would cancel planned transactions.
http://www.israeldefense.com/?CategoryID=475&ArticleID=2786
Yeah, send back our damn money. That'll show us.
-- "Hige sceal þe heardra, heorte þe cenre, mod sceal þe mare, þe ure mægen lytlað."