This post updates my post of June 26, 2013, in which I collected together a number of the publicly available MDA Overview and GMD System type briefings by MDA or other military/government officials (if you have one I missed, please send it to me). Thanks to Laura Grego at the Union of Concerned Scientists for obtaining the Todorov slides and most recent Syring briefing (one by FOIA, the other just by asking MDA).
MDA Deputy Director Brigadier General Kenneth Todorov, April 2015: Todorov-CSIS-April72015
MDA Program Executive for Advanced Technology Richard Matlock: SMDC2014–Matlock-Adv-Tech
MDA Director Vice Admiral J. D. Syring, August 13, 2014: Slides: SyringAugust2014SMDC-Slides Transcript: SyringAugust2014SMDCtranscript
MDA Director Vice Admiral J. D. Syring, August 2013: SyringAugust2013SMDC
MDA Program Executive for Advanced Technology Richard Matlock, August 2013: 2013-08-15-Matlock-AdvancedTechnology
MDA Director Vice Admiral James Syring, February 2013: BMD-Update-Syring-February2013
MDA Deputy Director Rear Admiral Randall M. Hendrickson, August 14, 2012: BMD-Update-Hendrickson-August 2012
“U.S. Ballistic Missile Defense,” Moscow, May 2012: US-BMD-Moscow-May2012
MDA Director Lt. General Patrick O’Reilly, March 2012: BMD-Update-O’Reilly-March 2012
MDA Director Lt. General Patrick O’Reilly, August 2011: BMD-Overview-O’Reilly-August2011
MDA Director Lt. General Patrick O’Reilly, September 2009: BMD-Overview-O’Reilly-September2009
MDA Director Lt. General Patrick O’Reilly, May 2009: BMD-Update-O’Reilly-May 2009
MDA Director Lt. General Trey Obering, May 2008: OberingMay2008NDIA
MDA Executive Director Dr. Patricia Sanders, June 2007: BMD-Overview-Sanders-June2007
MDA Director Lt. General Trey Obering, March 2007: BMD-Overview-Obering-March 2007
MDA Deputy Director Brigadier General Patrick O’Reilly, January 2007: BMD-Overview-O’Reilly- January 2007
mostlymissiledefense 
Weiguo
/ May 28, 2015George,you’re so wonderful, thanks for all these presentations, I love you so much!
Ben Eng
/ June 1, 2015Today’s news:
Serious technical flaws have been identified (http://www.stripes.com/major-flaws-revealed-in-us-anti-missile-nuclear-defense-1.349806) in the Missile Defense Agency’s Ground-Based Midcourse Defense (GMD) (http://www.defenseindustrydaily.com/3979m-next-step-or-last-step-for-gmd-05229/) system, with this the latest technical problem in a program which has cost over $41 billion (https://www.bga-aeroweb.com/Defense/Ground-Based-Midcourse-Defense.html).