According to US media the House Oversight and Government Reform committee has given the department until 5:00 p.m. on Wednesday (U.S. Eastern time) to identify the individual who requested that a portion of video from a 2013 public briefing be removed.
It is the first formal deadline the U.S. State Department faces in a case that has raised questions about the Obama administration’s transparency during Iran nuclear talks. 
The committee is also seeking documents showing who received the request as well as information, if any, on other requests to delete portions of daily press briefings.
At issue is a December 2, 2013, briefing conducted by then-spokeswoman Jen Psaki.
Asked about the accuracy of a State Department denial earlier in the year of secret government talks between the U.S. and Iran, Psaki said, “There are times when diplomacy needs privacy in order to progress.” 
“This is a good example of that,” she added.
The exchange was initially deleted from the posted video briefing but remained in the department’s official transcript.
Accusations of ‘whitewash’
Republican Congressman John Chaffetz, the chairman of the oversight committee, has accused President Barack Obama’s administration of trying to “whitewash” the public about details of Iran nuclear talks.
Lawmakers have also called for Secretary of State John Kerry to testify about the incident and for a State Department Inspector General probe.
On Tuesday, State Department spokesman Mark Toner said the agency was working to meet the Wednesday deadline. 
“They did request a pretty extensive amount of information,” said Toner. “We are going to provide what we can.” 
Last week, Kerry called the video edit “stupid” and “inappropriate.”  However, State Department officials have said it remains unclear who made the edit request. 
Some U.S. lawmakers have remained skeptical of the Iran nuclear deal, known as the Joint Comprehensive Plan of Action. 
They have voiced concerns that the Obama administration provided misleading information about plan and that the deal could be destabilizing for the U.S and its Middle East allies.
Source: US media, 8 June 2016