Sentinel 40 – June 2018 Sentinel 39 – Sept 2017 Sentinel 38 – Aug 2017 Sentinel 37 – June 29, 2017 Sentinel 33 – September 13, 2016 Sentinel 32 – August 14, 2016 Past Newsletters: June 25, 2012 – The Sentinel June 4, 2012 – The Sentinel April 2, 2012 – The Sentinel October 3, 2011 – The Sentinel September 12, 2011 – The Sentinel
