laurie robinson, and lester spence of "the atlantic." you all so much. >> thank you. >> thank you. >> thank you. >> woodruff: next, as part of our ongoing partnership with "the atlantic" magazine, my profile of michele roberts, the executive director of the national basketball players union. an article featuring roberts is in the magazine's may issue that is currently on the stands. >> woodruff: last year this time, michele roberts was one of the country's leading trial lawyers. an unknown quantity in the world of basketball, she was still chosen out of 300 candidates receiving almost 90% of the vote from player representatives to lead their union. >> initially when i got the job, and this is true, there were literally mornings i'd get up and i remember that i was no longer in d.c., i was no longer practicing law and then i just burst into laughter, and think like, "this is so cool!" my two older brothers were basketball fans. we had one television growing up and we saw a lot of knicks games. and so, just by osmosis, i started watching t

and laurie robinson a professor at george mason university. welcome to you both. john, i want to start with you as a former police officer, the difference between a gun and a taser, i have talked to people who say, if you have the right training, the minute you touch that, you're going to know which is which. >> well, from my experience having used both a firearm and a taser, it's difficult for me to figure one would be confused. these are very unsettling circumstances -- circumstances that aren't very controlled. it's somewhat odd to me that you would have a reserve officer in that situation. why does a reserve officer has a taser? one questions from this circumstance, are too many officers provided tasers? >> and there's also, there have been nine incidents confusing tasers and weapons, you think they would change something or look at that. laurie, do we have enough data on what's going on? we're inundated with these videos now, people are starting to carry these body cameras, it seems like we don't have a handle on what's going on. >> martha, one thing that our