You can see Andrew's tweet here: http://imgur.com/a/vnbvT http://imgur.com/a/vnbvT Note that he did not simply tweet the words "Build the wall." That's not wh

You can see Andrew's tweet here: http://imgur.com/a/vnbvT http://imgur.com/a/vnbvT Note that he did not simply tweet the words "Build the wall." That's not what happened. What he did is he screenshotted another YC founder's private facebook wall post, in which she says she is scared for her safety. And he publicly tweeted her words while adding "Build the wall" as mocking commentary.