David Orland discusses an estimate that Britain is home to 500,000 illegal aliens, about 0.8 percent of the country's total population.

The 500,000 estimate is much higher than previous estimates and "is likely to intensify the row over immigration."

By comparison, there are an estimated 18-20 million illegal aliens in the U.S., roughly 6-7 percent of our population.

Even so, Tony Blair seems more serious about addressing the problem than George W. Bush.