Queer Coffee; Low Signature

[Bapopik at AOL.COM]

QUEER COFFEE

   A "queer coffee" was announced in one of my e-mail messages.  Is this common enough to be recorded?
   I saw "queer coffee" and thought it meant they were serving Sanka.

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LOW SIGNATURE

   Used on tonight's NIGHTLINE.  Our presence in Afghanistan was intended to be "low signature."  A Google check shows a lot of military hits, such as the LSV--Low Signature Vehicle.
   Is there an opposite for "low signature," perhaps something other than "high signature"?  Does John Hancock come into play here?