More than 1.5 million Texans could be removed from the state's list of registered voters if they fail to vote or update their records in consecutive federal elections, part of an aggressive policy to keep files current.

Already, one in 10 voters in Texas had their registration suspended, and for people under 30, the number doubles to one in five, the Houston Chronicle reported Monday (Click here for more).

Federal law requires states to keep up-to-date voter records. But the Chronicle reports Texas relies on outdated computer programs and faulty methods to do this, resulting in errors.

In fact, 21 percent of voters who received letters saying they would be purged from the rolls were able to prove their validity, according to the newspaper's analysis of U.S. Election Assistance Commission data.