> Senior officials said that U.S. signals and aerial intelligence, combined with local reporting and samples taken from victims of the attack, showed that a Russian-made, Syrian-piloted SU-22 aircraft dropped at least one munition carrying the nerve gas sarin on the northwestern town of Khan Sheikhoun.
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> The officials said that nothing from an array of intelligence and publicly available material provided any credence to the alternative account put forward by Syria and Russia, which claimed that routine bombing inadvertently struck an opposition chemical weapons depot.
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> “We are very confident that terrorists or nonstate actors did not commit this attack,” said one senior official who, like others, spoke to reporters on the condition of anonymity to discuss intelligence findings.
Nothing new reported.
It seems that the “signals intelligence” is new. I haven’t seen that reported elsewhere.