Israeli Ambassador to the United States Michael Oren insists it's no longer enough for the U.S. and Israel to say all options are still on the table.  Oren tells Fox News, “We have said again and again that we need crippling sanctions combined with a credible military threat.”  

Oren stated that while the two countries may hold different perspectives, Israel is remaining in close contact with the United States.

“America is a very big country with a big window of opportunity, it looks out that window it sees Iran very far away. We are a tiny country with a small window. We look out that window we see Iran in our backyard” Oren remarked.

President Obama met with Prime Minister Benjamin Netanyahu and held discussions earlier this week. At that meeting, Netanyahu presented the President with the book of Esther, a biblical story of a plot to execute the Jewish people. A possible analogy for the increasing threat of a nuclear Iran. (read more)

UPDATE 2:00pm ET:  Senate Sergeant at Arms Terrance Gainer has just sent an updated e-mail to all Senate offices confirming that three total congressional offices have received threatening mails containing a powdery substance that has initially tested negative for containing a bio-agent and more letters could be on the way.  

But the Gainer warning, obtained by Fox, makes clear, "The author of these letters has indicated that additional letters containing a powdery substance will be arriving at more Senate offices and that some of these letters may contain an actual harmful material. Although all letters received thus far have proved harmless, it is essential that we treat every piece of suspicious mail as if it may, in fact, be harmful." 

A Senate state office and a House district office received the threatening letters Tuesday, and Gainer says an additional Senate state office received a letter Wednesday.  The Sergeant at Arms does not indicate which office received the correspondence, but Gainer repeats the earlier call for members to be on the lookout for a particular Portland, Oregon address previously reported by Fox. 

Gainer says his staff is "working closely with federal and local law enforcement in this ongoing investigation."

Congressional security officials, police, and staff often work with outside law enforcement. Recently, a joint investigation thwarted a would-be suicide bomber who was intent on attacking the U.S. Capitol.  (read more)