Quite the unbiased, scholarly work . . .

California's nearly 3 million illegal immigrants cost taxpayers nearly $9 billion each year, according to a new report released last week by the Federation for American Immigration Reform, a Washington, D.C.-based group that promotes stricter immigration policies.

The federation is one of the nation's leading lobbying groups aimed at curbing immigration into the country.

The study assumes that there are about 1 million children of illegal immigrant parents in California, or about 15 percent of the state's K-12 school enrolled population. The estimate is based on a 1994 study by the Urban Institute that concluded there were 307,000 illegal immigrant children enrolled in the state's public schools.

Martin also added an estimate of 597,000 U.S.-born children whose parents are illegal immigrants arriving at a total of 1,022,000 children. Multiplying the number of children by the estimated $7,577 the state spends on average per pupil, the study arrived at the $7.7 billion figure.