South Korea's Asiana Airlines will carry out internal restructuring, reduce routes and sell its assets as it contends with mounting debts. <br />The measures were outlined on Monday in a letter to the company's employees from CEO Han Chang-soo. <br />While the exact details were not given,... Han explained the airline will first sell additional assets to secure liquidity. <br />He also said Asiana will slash routes that have proven unprofitable. <br />