https:// fr.sputniknews.com/international/201805121036332013-AIEA-accord-iran-demission/
Seems related, the chief of the inspectors of the Iranian Nuclear deal, has resigned on the 11th of May.
AIEA (International atomic energy Agency) had dedicated inspectors to check the Iranian nuclear program according to the Iranian deal, their boss has just resigned.
Seems he considered he failed in his mission and prefered resigning before the truth comes out.