BEIRUT, Lebanon - Jonathan Chakhtoura, a 19-year-old Lebanese-American, is eager to escape the outbreak of Mideast fighting here. But he says he's extremely disappointed with the way U.S. authorities have handled the evacuation. "Every time I call to see what's going on the lines are busy," he said of the U.S. Embassy. "When they answer, they say they don't know," said Chakhtoura, who wants to be back in Boston before his fashion design classes start Sept. 6. "A lot of people don't know what is going on. There is so much confusion. If it's security they are worried about, then...