Bomb disposal experts on December 1 defused a letter bomb at the U.S. Embassy in Madrid, the sixth such device sent to high-profile targets in Spain in the past few days. The campaign began with a letter bomb sent to Prime Minister Pedro Sanchez last week. Similar devices have been sent to the Defense Ministry, an air force base, a weapons manufacturer, and the Ukrainian Embassy. Defense Minister Margarita Robles, who met Ukrainian Defense Minister Oleksiy Reznikov, in Odesa on December 1, said the letter bombs would not deter Spain from supporting Ukraine's "just cause.” To read the original story by Reuters, click here.