The CIA ISIS is losing, and so in anger they attack Iran.
Iranians courageously, nobly like great warriors and bravely fight ISIS clearly in the open, resulting in the death of 500 Iranian servicemen and 4 generals....in Syria 2000 Pasdaran and in Iraq (Weak donkey Iraq who do not know the difference between their foot and their ass).....only 1000 Pasdaran mainly from the elite Quds brigade...invited into Iraq by the USA in 2004.
The CIA ISIS is losing, and so they attack Russia in St. Petersburg. Putin in response directly accuses the CIA of the St. Petersburg attack, and threatens dire consequences (Yes CIA, Russia is not yet another victim Third World country)
Previous terrorist attacks inside Iran have been undertaken by PJAK, which is backed by the CIA, and Israel.
MEK----backed by Israel and the CIA......targeting Iranian nuclear scientists.
Jundullah--backed by the CIA and Israel.....attacking Iranian security personnel in SE Iran.
SO, this latest "ISIS' attack in Iran is the work of........................................guess!
Members of Iranian forces take position during an attack on the Iranian parliament in central Tehran (Reuters)