12 April 2013 - Washington D.C.
27 September 2012 - New York City, New York, USA
17 April 2012 – Rome, Italy
17-18 November - Crystal City, Virginia, USA
September 16 - 17, 2011 - Washington, D.C., USA
26 - 27 April 2011 – Brussels, Belgium
17-18 November 2010 – Crystal City, USA
20-21 September 2010 – New York, NY, USA
June 30 - July 1, 2010 – Rome, Italy
19 April 2010 – Washington, DC, USA
18-19 October 2009 – London, United Kingdom
17-18 September 2009 – Washington, DC, USA
22-23 June 2009 – Jiutepec, Mexico
25-26 May 2009 – Paris, France
27-28 April 2009 – Washington, DC, USA
9 July 2009 – L'Aquila, Italy
