On: CCC Fake Fingerprint

[Groxx]

A definite possibility, though the other is that superglue reacts with plastics, sometimes quite destructively. Fumes alone can eat up plastic films, for instance. It's quite possible the fumes simply screwed up the surface of the plastic enough to look white.

[tlrobinson → Groxx]

You can't see in that photo but there's a very clear fingerprint on it. But your explanation makes sense too.