I have nothing against Tether and Bitfinex, but you have to question the timing of this so called alleged allegations against them. I mean yeah they could have been doing this for years.
But when we are about to make a break out run to let's say $68,000-$70,000 (assuming there is no Mt. Gox repayment in the background), you just have to think of this as somewhat more of a FUD, IMHO.
And usually if there is such FUD, the market might make a big move.