Survey after survey in the United States indicates that one of the biggest worries in retirement is running out of money. More than a third of retired US investors and half who aren’t retired said they worry they will run out of money and be forced to depend on Social Security as their main income source, according to a Wells Fargo-Gallup survey. You might think that it would make people save more. But few of us even know how much we need to save for a comfortable retirement. Read more…