WASHINGTON (AP) — A growing number of Americans age 40 and older think Medicare should cover the costs of long-term care for older adults, according to a poll conducted by the Associated Press-NORC Center for Public Affairs Research. According to the poll, 56 percent of Americans age 40 and over think Medicare should have a major role in paying for ongoing living assistance, up from 39 percent who said so in 2013. Most also favor tax policies to encourage long-term care planning, including tax breaks to encourage saving for long-term care and the ability to use nontaxable accounts like 401(k)s and IRAs to pay for long-term care insurance premiums. [...] just 25 percent would favor requiring individuals to purchase long-term care insurance, perhaps echoing opposition to the individual mandate to buy insurance that has long been the least popular part of the 2010 health care law. [...] the survey shows that if anything, older Americans feel less prepared for the costs of care than they have in recent years. Just a third have set aside money to pay for nursing care or home health aides, less than half have talked to their families about their preferences for receiving long-term care and most have not created a living will or advance treatment directive.