There’s no particular theme to this week’s surfing, but there are some pretty pictures and good reads here. The problem with waste – Note that the list of not-recommended screenings include things like screening for prostate cancer in men older than 75 or colon cancer in folks above 85. I glanced through the USPSTF's procedure manual, and it looks like they're taking into account a variety of factors (age, gender, race, etc.), but their information is only as good as the studies they're pulling from. How worried should we be about researchers' biases (ageism being the first that comes to mind)? "So we’re confronted with a set of screening recommendations…