Board Thread:Speculation House/@comment-24218038-20131202202153/@comment-3146930-20131207134840

The Devil's Advocate WP wrote: Sorry, but that does not really cut it. Blake was pretending to be a human, never contradicting them when they presumed she was one, and that means she was deliberately deceiving them for months. There also is a bit of lie in what she says to Sun about deciding to leave because she no longer wanted to aid in their violence. We know from the Black Trailer that it was more directly because Adam was prepared to kill random innocents. I think it is a bit much to presume Blake would be honest and upfront about everything after her slip. More likely she only told them part of the truth with some lies mixed in to cover for some part of her history with the White Fang.

She isn't deceiving her team, she is hiding from those that could do her harm. She mentions when talking to Sun that she uses the bow to hide because she is still a criminal. If she had told her teammates and asked them to keep it a secret, Weiss would flip out and probably go straight to a teacher and Ruby+Yang don't seem like the type to keep a secret.

Also with Sun, I don't see how that is lying. Adam probably isn't the only member of White Fang that goes around and hurts people during missions. Adam could have just been the straw that broke the camel's back. The members of the White Fang were becoming increasing more violent and got to a point were they didn't care about innocent bystanders anymore. Adam probably isn't the only Faunus that would do that and eventually, the White Fang would reach a point were they were openly killing innocents if it meant killing more important figures (like using a bunch of Dust to destroy a Schnee Company Building; sure you could kill a lot of CEO's, but a lot of workers as well and probably people in the area).