bruce karpati joining us.ching tv, algorithms, high frequency trading, dark pools. i know these are policy issues in the sense that make them exist but your job is to enforce them. is this something that's front and center in terms of the enforcement decision? is the division trying to attack where these are being used incorrectly? >> well, carl, gary, happy to be here today. you know, dark pools, algorithms, those are policy matters. in enforcement, we're charged with investor protection. so when it comes to electronic trading, when there are issues, when there's rules violated we're going to pursue them. in the last year we've seen cases against axon rosenberg, these are all times where we're going to act. and further to that point we have a market abuse unit that is focused on these units in particular. >> would you say that this is, i mean obviously there's tremendous amount of areas that you're focused on. you say this is the top priority right now given what many people think is out there in terms of abu