"First, with a substance so potent, how is it possible that the two women who allegedly attacked Kim Jong-nam with it could have survived? Second, given that particles can remain in the environment for possibly weeks after being released, why didn’t the airport undertake specialized decontamination measures to ensure the public’s safety?"

It is telling that Reuters failed to be so skeptical of the British in their "investigation" of the polonium poisoning of Aleander Litvinenko.  I bet it's racism; "white Brits right, brown Malaysians incompetent".