DES MOINES (AP) ? Des Moines police are looking for a man who may have taken an 88-year-old man's stamp collection valued at $15,000.The Des Moines Register reports the man had been staying at the home of the elderly Des Moines resident, who noticed the collection was missing after the man left in February to live elsewhere. The elderly man also said his house guest had persuaded the man to write the guest ...