CNN CNN Newsroom April 23, 2013 18:39:00
Computerized trading, how this trading does happen within nanoseconds how the curbs can be put in place, chris. >> all right, thank you so much for the reporting and perspective. always a pleasure. appreciate it, alison. we're going to go to the other breaking news story that we're covering. remember the letters sent with a ricin substance into them, a toxin, to the president, to other officials, the big investigation, they said that they had their suspect, well, now, that suspect, kevin curtis, has been released. on the phone, christie mccoy, his counsel. can you hear he? >> i can, chris. >> ...