An explosives and chemical expert arrives to investigate a suspicious letter received at the U.S. embassy in Madrid, Wednesday, Dec. 17, 2008. The U.S. Embassy said it received the envelope Wednesday but Spanish police said they believed it was a hoax. An embassy spokesman said the letter resembled others sent Tuesday to other U.S. embassies in Europe, several of which turned out to contain flour.
Credit: AP Photo/Daniel Ochoa de Olza
A sheep is seen in the snow in Tagelswangen, Switzerland, Wednesday, Dec. 17, 2008.
Credit: AP/Keystone/Steffen Schmidt
Rhinoceros Betty and her calf Manjula are seen in their outdoor enclosure at the Tierpark in Berlin, Wednesday, Dec. 17, 2008.
Credit: AP Photo/Franka Bruns
Caroline Kennedy speaks to reporters after visiting with Mayor Matt Driscoll in Syracuse, N.Y., Wednesday, Dec. 17, 2008. Kennedy is interested in the U.S. Senate seat vacated by Hillary Clinton.
Credit: AP Photo/Kevin Rivoli
Cars from a Canadian Pacific freight train lie tumbled off the tracks after it collided with another train near Dresbach, Minn., shortly after 5 a.m., Wednesday, Dec. 17, 2008. Authorities say the accident at the southeastern corner of Minnesota injured two railroad employees, set off a propane leak and caused some railroad cars to fall into the Mississippi River.
Credit: AP/La Crosse Tribune, Ryan Henry
A Jordanian man hawks his load of cotton candy on a street in Amman, Jordan, Wednesday Dec. 17, 2008.
Credit: AP Photo/Mohammad abu Ghosh
The Ottoman era Suleymaniye mosque is silhouetted as the sun sets in Istanbul, Turkey, Wednesday, Dec. 17, 2008.
Credit: AP Photo/Murad Sezer
On The March
An Evzone, a Greek presidential guard, marches at the tomb of the unknown soldier in Athens, Wednesday Dec. 17, 2008. Protesters hung two giant banners off the Acropolis on Wednesday, with slogans calling for mass demonstrations across Europe and "resistance," after days of violent protests sparked by the fatal police shooting of a teenager in Athens.