Problem: Germans:

In the midst of the European sovereign-debt crisis, Radek Sikorski, Poland's Foreign Minister, stated in November 2011, "I will probably be the first Polish foreign minister in history to say so, but here it is: I fear German power less than I am beginning to fear German inactivity. You have become Europe's indispensable nation." According to Jacob Heilbrunn, a senior editor at The National Interest, such a statement is unprecedented when taking into consideration Germany's history. "This was an extraordinary statement from a top official of a nation that was ravaged by Germany during World War II. And it reflects a profound shift taking place throughout Germany and Europe about Berlin's position at the center of the Continent." Heilbrunn believes that the adage, "what was good for Germany was bad for the European Union" has been supplanted by a new mentality—what is in the interest of Germany is also in the interest of its neighbors. The evolution in Germany's national identity stems from focusing less on its Nazi past and more on its Prussian history, which many Germans believe was betrayed—and not represented—by Nazism. The evolution is further precipitated by Germany's conspicuous position as Europe's strongest economy. Indeed, this German sphere of influence has been welcomed by the countries that border it, as demonstrated by Polish foreign minister Radek Sikorski's effusive praise for his country's western neighbor. This shift in thinking is boosted by a newer generation of Germans who see World War II as a distant memory.

What are Germans trying to focus on?
---
A: Prussian history


Problem: Military history of the United States:

As a result of the Libyan Civil War, the United Nations enacted United Nations Security Council Resolution 1973, which imposed a no-fly zone over Libya, and the protection of civilians from the forces of Muammar Gaddafi. The United States, along with Britain, France and several other nations, committed a coalition force against Gaddafi's forces. On 19 March, the first U.S. action was taken when 114 Tomahawk missiles launched by US and UK warships destroyed shoreline air defenses of the Gaddafi regime. The U.S. continued to play a major role in Operation Unified Protector, the NATO-directed mission that eventually incorporated all of the military coalition's actions in the theater. Throughout the conflict however, the U.S. maintained it was playing a supporting role only and was following the UN mandate to protect civilians, while the real conflict was between Gaddafi's loyalists and Libyan rebels fighting to depose him. During the conflict, American drones were also deployed.

 The Iraqi conflict was primarily fought between which groups?
---
A: unanswerable


Problem: Tuberculosis:

The risk of reactivation increases with immunosuppression, such as that caused by infection with HIV. In people coinfected with M. tuberculosis and HIV, the risk of reactivation increases to 10% per year. Studies using DNA fingerprinting of M. tuberculosis strains have shown reinfection contributes more substantially to recurrent TB than previously thought, with estimates that it might account for more than 50% of reactivated cases in areas where TB is common. The chance of death from a case of tuberculosis is about 4% as of 2008, down from 8% in 1995.

What methods have recent studies used to examine HIV strains?
---
A: unanswerable


Problem: Tristan da Cunha:

In 1958 as part of an experiment, Operation Argus, the United States Navy detonated an atomic bomb 160 kilometres (100 mi) high in the upper atmosphere about 175 kilometres (109 mi) southeast of the main island.

Where was the nuclear bomb detonated?
---
A:
unanswerable