No one has ever accused Trump of hiding his light under a bushel.

WSJ: Donald Trump returns to the 'Apprentice' boardroom

But resist it you should: chances are that one of Barcelona's finest watering holes lies close at hand, hiding its neon light under a bushel.

BBC: Barcelona: More than meets the eye

Here's the problem: these light-guiding structures need to be not much bigger than the wavelength of the light they're hiding from.

BBC: Invisibility cloaks: Will we ever really have them?

As the crisis spread over the past few years, these journalists have been able, paradoxically, to keep it from seeing the light of day, hiding it from the very readers they are always trying to reach.

FORBES: Journalists and Performance-Enhancing Substances

The team used a prototype to demonstrate the idea, hiding centimetre-scale objects illuminated with polarised green or red laser light.

BBC: Invisibility cloaking benefits from crystal-clear idea

Sometimes a yellowish light laminated a bend in the tunnel wall, and the Minotaur was sure the new girl was hiding just around the corner.

NEWYORKER: Ziggurat