The military coup that overthrew Mossadeq and his National Front cabinet was carried out under CIA direction as an act of U.S. foreign policy, conceived and approved at the highest levels of government. (Source)
A method was developed using microscopic observations of paint cracking to determine whether steel members had experienced temperatures in excess of 250 degrees C. More than 170 areas were examined . . . Only three locations had a positive result indicating that the steel and paint may have reached temperatures in excess of 250 degrees C.” Analysis of steel “microstructures show no evidence of exposure to temperatures above 600 degrees C for any significant time.
NIST believes that this collection of steel from the WTC towers is adequate for purposes of the investigation.