While American Congressman Rohrabacher believes that terror attacks by ISIS that kill innocent people in Iran are legitimate when directed against a hostile regime, his country’s Secretary of State Rex Tillerson confirms that his goal about Iran, remains regime change.
According to Think Progress, Tillerson said the US policy as it stands is to rely on “elements inside of Iran” who can be supported toward the end goal of regime change, with the hope it would be a “peaceful transition of that government.” 
As Think Progress asserts, “elements inside of Iran who can be supported toward the end goal of regime change” might be the Mujahedin Khalq terrorist organization (the MKO/ MEK/ Cult of Rajavi).  Coincidently the MKO has bribed several US Congressmen such as Dana Rohrabacher in exchange for their support.
On Thursday, June 8th, the day after the twin attacks in Tehran, Rep. Dana Rohrabacher (R-CA) praised the recent Islamic State attack as a “good thing” and suggested that maybe the United States should work with the militant organization. 
“It’s no surprise that Rohrabacher is so anti-Iran he is willing to praise the Islamic State for conducting an attack in the country”, writes Adrienne Mahsa Varkiani of Think Progress. “The congressman is a vocal supporter of regime change as well as a huge advocate of the Mujahedin-e Khalq (MEK), a cult-like group known for human rights abuses which wants to overthrow the Iranian government and which was classified as a terrorist organization by the U.S. government until 2012.”
On the other hand, we see Congressman Ted Poe who is also an ardent supporter of the MKO and he is the very person who encouraged Secretary Tillerson to imply his support for the anti-Iran groups like the MKO. “Tillerson’s remarks were in response to questioning from Rep. Ted Poe (R-TX), a vocal supporter of the Mojahedin-e-Khalq (MEK), whose members were in attendance at the briefing”, states Daruis Namazi of National Iranian American Council (NIAC). “Rep. Poe (R-TX) asked Tillerson whether the U.S. supports “a peaceful regime change” and whether it is U.S. policy “to lead things as they are or set up a peaceful long-term regime change.” Tillerson implied that, it was U.S. policy to move toward supporting regime change, stating the U.S. would “work toward support of those elements inside of Iran that would lead to a peaceful transition of those governments.” 
As a matter of fact, “Peaceful transition of government” is nothing but a mirage. As far as the US hardliners count on terrorist violent groups like the MKO, ISIS etc. nothing will be peaceful. Namazi believes, “Such an endorsement is more likely to be a boon to groups seeking to violently overthrow the Iranian government, such as the MEK. As a result, the Trump administration could be headed toward repeating the mistakes of the U.S.-sponsored overthrow of Mohammad Mossadeq in 1953.” 
The American journalist Tony Cartalucci goes further implying that the US has already started the agenda of violent regime change in Iran using proxy forces like the MKO. He bases his arguments on the official document of the Brookings Institution 2009, titled, “Which Path to Persia? Options for a New American Strategy toward Iran”. In the paper, “the use of then US State Department-listed foreign terrorist organization Mujahedin-e Khalq Organization (MEK) as a proxy for instigating a full-fledged armed insurgency not unlike that which is currently unfolding in Syria was discussed in detail.” 
As Cartalucci reports, Brookings policy makers admit the MKO’s violent past including the assassination of six US military personnel and civilians in the 1970s in Iran. However, the group was delisted in 2012 following a multi-million-dollar lobbying campaign. Since then the group reopened its Washington office and ratcheted up its large scale anti-Iran drive but it was not successful. “However, despite these efforts, MEK was not capable then or now of accomplishing the lofty goal of instigating full-fledged insurrection against Tehran, necessitating the use of other armed groups,” Cartalucci writes. 
Other armed group’s seems to include the ISIS for the US warmongers which will not substantially be able to lead a “peaceful” transition of governments. The so-called “peaceful transition” will not be fulfilled by using the MKO either. The group’s violent past with terrorist attacks that claimed the lives of thousands of innocent civilians and government officials is undeniable. Moreover, the MKO’s alliance with the then Iraqi dictator Saddam Hussein during the eight years of the Iran-Iraq war eradicated the little support they enjoyed among the Iranian public opinion.
Pual Pillar of the National Interest clarifies how the MKO’s violent past helped the Iranian security forces get experienced enough to cope with such incidents. “The principal perpetrator of terrorism in Iran over the past four decades has been the Mujahedin-e Khalq (MEK), the Marxist/Islamist cult/terrorist group that prior to the revolution had claimed Americans among its victims,” Pillar writes. “Thanks largely to the MEK’s activity, Iran necessarily has had much experience in countering terrorism. Khamenei lost the use of his right arm when he was injured by an MEK bomb in an assassination attempt in 1981.” 
Obviously, proxy wars using terrorist groups and/or ethnic minorities is of no use but causing the Iranian people more united. As they proved it after the last week’s terrorist attacks in Tehran sharing images and messages of solidarity like #together-with-Iran and #united-we-stand.
By Mazda Parsi
Varkiani, Adrian Mahsa, Tillerson calls for regime change in Iran, Think Progress, June 15, 2017
 Varkiani, Adrienne Mahsa, Republican congressman praises ISIS attack in Iran, says US should, Think Progress, June 10, 2017
 Namazi, Darius, Secretary Tillerson Eschews Iran Diplomacy in Favor of Regime Change, NIAC Council, June 15, 2017
 Cartalucci, Tony, Tehran Was Always America’s And Thus The Islamic State’s Final Destination, New Eastern Outlook, June 11, 2017
 Pillar, Paul R, Terrorism in Tehran: Reality Confounds Rhetoric Mujahedin Khalq, the National Interest, June 11, 2017