Security ... think about it!
Yesterday's Minneapolis Star Tribune had the front-page headline: "Co-sleeping kills about 20 infants each year." (The headline in the web article is different.) The only problem is, in either case, there's no additional information with which to make sense of the statistic. How many infants don't die each year? How many infants die each year in separate beds? Is the death rate for co-sleepers greater or less than the death rate for separate-bed sleepers? Without this information, it's impossible to know whether this statistic is good or bad.