ADS-B Mandate – ATCs Responsible for Deaths?

[OZBUSDRIVER]

Here is a PDF from Lincoln Labs. Granted, it is a PowerPoint display. Hope this helps understand the basic workings of the ATM system.
http://adsb.tc.faa.gov/WG3_Meetings/...uitter-Lon.pdf

edit- to add, PDF actually goes in depth on a number of issues.