Here’s a good example of liberal bias creeping into a newspaper’s coverage of something other than politics: An interesting story in today’s Washington Post on a scientific study suggesting that genes play a greater role in determining IQ differences among upper-income children than they do among lower-income children, whose IQ differences depend more on environment. This may very well be true, and if so, it’s an important insight. Yet the author the Post story gets a real bee in his bonnet over Head Start, suggesting no less than three times that Head Start is therefore essential: “The results suggest that early childhood assistance programs such as Head Start can help the poor and are worthy of public support.” Etc. Not once does he mention what I’m sure is an even greater influence on poor kids: Whether or not they come from two-parent families. I’d be willing to bet my bottom dollar that this is the most important “environmental” factor for their IQ. And not a single word on it.