A person searching through the massive expanse of data collected by the U.S. Census Bureau in search of details about a specific neighborhood may increasingly find statistics with colossal margins of error, such as an average income of $50,000 plus or minus $50,000. Professor Seth Spielman, involved in the National Sciense Foundation's newly created Census Research Network, has been granted a five-year $1.4 million grant to see if he can change that.