An Iowa mother who left her four young children alone to go on an 11-day European trip was jailed on child endangerment charges, authorities said on Friday. Erin Lee Macke, 30, travelled from Iowa to Germany on September 20 without arranging child care for her children, two aged 12 and the others 6 and 7, Johnson police said. The children also had access to a gun in the house. "The police have seen times when people have left their children to go somewhere, but to go to another country is completely different," said Janet Wilwerding, a spokeswoman for the city of 22,000.