A former Baltimore Police Department officer named Michael Wood caused a stir online when he began tweeting some of the horrible things he claims to have seen during his 11 years on the job. Here's a [phone interview] transcript, interspersed with some of Wood's tweets. Balko: You mentioned seeing cops urinate and defecate in the homes of suspects, even on their beds and their clothes. How common was that? Wood: There's a particular unit that does that. Everyone knew it. They usually blame it on the dog. [Tweet] A detective slapping a completely innocent female in the face for bumping into him." Balko: One common criticism asked why you didn't report these incidents. Wood: I'm totally guilty. I should have done more. [Tweet] "Swearing in court and [official documents] that suspect dropped CDS [controlled dangerous substances] during unbroken visual pursuit when neither was true." Wood: It all goes back to this whole us versus them thing. Your job is to fight crime, and these are the guys you do it with. They aren't really even people. They're just the enemy. This is the culture. There's a powerful bureaucracy at any big city police department. A few guys run the whole show. A few old white guys hand-pick who climbs the ranks. [Tweet] "Targeting 16-24 year old black males essentially because we arrest them more, perpetrating the circle of arresting them more." Balko: How do we make things better? Wood: I think it starts with empathy. We need to stop all this warrior talk, the militaristic language, and the us versus them rhetoric.