Police equipped with submachine guns and bullet-proof vests guard the main train station in Berlin Friday, Nov. 19, 2010, after German Interior Minister Thomas de Maiziere raised the country's terrorist threat level on Wednesday, saying intelligence services had received a tip from an unspecified country about a suspected attack planned for the end of November. (AP Photo/Ferdinand Ostrop)
A man takes photos of the original mammoth calf Lyuba, at the Neanderthal Museum in Mettmann, western Germany, Friday, Nov. 19, 2010. The mammoth baby died 40.000 years ago in the mud, where it was conserved in the ice. A new exhibition shows the giants of the ice age in the famous valley, where the Neanderthal man was found. (AP Photo/Martin Meissner)
A woman views what is claimed to be the oldest known art work of mankind, at the Neanderthal Museum in Mettmann, western Germany, Friday, Nov. 19, 2010. The mammoth ivory carving of prehistoric man is 35,000 years old, and was found in southern Germany. A new mammoth exhibition shows the giants of the ice age in the famous valley, where the Neanderthal Man was found. (AP Photo/Martin Meissner)
The small original mammoth Lyuba is shown at the Neanderthal Museum in Mettmann, western Germany, Friday, Nov. 19, 2010. The mammoth baby died 40.000 years ago in the mud, where it was conservated in the ice. A new exhibiton shows the giants of the ice age in the famous valley, where the Neanderthal Man was found. (AP Photo/Martin Meissner)
The little original mammoth Lyuba is shown at the neanderthal museum in Mettmann, western Germany, Friday, Nov. 19, 2010. The mammoth baby died 40.000 years ago in the mud, where it was conservated in the ice. A new exhibiton shows the giants of the ice age in the famous valley, where the 44.000 years old neanderthal man was found. (AP Photo/Martin Meissner)
Children watch a giant mammoth and a calf model at the Neanderthal Museum in Mettmann, Germany, Friday, Nov. 19, 2010. A new exhibition shows the giants of the ice age in the famous valley, where the Neanderthal Man was found. (AP Photo/Martin Meissner)
A little girl watches a giant mammoth model at the Neanderthal Museum in Mettmann, western Germany, Friday, Nov. 19, 2010. A new exhibition shows the giants of the ice age in the famous valley, where the Neanderthal Man was found. (AP Photo/Martin Meissner)
President Obama meets with German Chancellor Angela Merkel on the sidelines of the G-20 summit Thursday in Seoul. She rejected a U.S. proposal to try to cap global trade imbalances. "To set political limits on trade surpluses and deficits is neither economically justified nor politically appropriate," she told the G-20 business summit. (Associated Press)
The first lady of the United States Michelle Obama (left) serves food to U.S. airmen and their relatives at Ramstein Airbase in Ramstein, Germany, on Nov. 11, 2010. Michelle Obama makes a series of stops within the Kaiserslautern Military Community on Veterans Day to thank U.S. servicemen and women for their work. (Associated Press)
