Hi, I've been thinking about the concept of charged black holes. What I'm wondering is this; if light cannot escape a black hole, and photons are the bosons of the EM force, then is it meaningful to describe a black hole as having a 'charge'? If the photons cant escape the black hole, then no information about the state of charge of the system will be detectable to an outside observer right? I can imagine there being charged clouds around a black hole, but I don't see how the interior of an event horizon can be considered charged. Thoughts?