GARMISCH-PARTENKIRCHEN, GERMANY - JUNE 07:  U.S. President Barack Obama (R) and Britain's Prime Minister David Cameron attend a bilateral meeting at the summit of G7 nations at Schloss Elmau on June 7, 2015 near Garmisch-Partenkirchen, Germany. In the course of the two-day summit G7 leaders are scheduled to discuss global economic and security issues, as well as pressing global health-related issues, including antibiotics-resistant bacteria and Ebola. Several thousand protesters have announced they will seek to march towards Schloss Elmau and at least 17,000 police are on hand to provide security.  (Photo by Carl Court/Getty Images)