WASHINGTON – A report suppressed by the INS provides highly embarrassing and potentially politically explosive reading for current immigration reform advocates, concluding the 1986 amnesty actually caused an increase in illegal immigration.

The law failed, the report explains, because it offered an incentive for more illegal aliens to come and take advantage of a future amnesty.

Critics fear the current proposal by Sen. Marco Rubio, R-Fla., and others would do the same.