CEDAR RAPIDS, Iowa Seniors calling a phone number for answers about the new Medicare prescription drug program reached a phone sex line by mistake. The Medicare program, criticized by some as confusing, will likely be more confusing to Iowans and others who received a letter from Humana Incorporated with an incorrect phone number. The company is one of numerous insurance companies offering coverage for the new Medicare drug program that starts January 1st. Humana spokesman Dick Brown says a few thousand letters were sent nationwide last month to people asking about Medicare's drug program under Humana. The phone number listed...