i think u should stay back. Who knows when the embassy opens?? who knows the situation might even deteiorate?? dont take any chances. I know its hard for you to miss your sisters wedding, but i dont think u want to take that kind of risk. If your sister knows your situation, i'm sure she wouldnt want you to come either. Lets just pray that our country's situation gets better and hopefull people will live and enjoy with peace.