The report represents a genuine effort by the INS to examine this complex problem. The new estimates are the best to date and provide valuable new information for policymakers and the public. Among the findings, and their implications:
"The fact that these new INS figures show that the last amnesty actually attracted more illegal immigration should give serious pause to those now advocating another amnesty," said Steven A. Camarota, Director of Research at the Center for Immigration Studies. "With the government estimating that nearly half a million illegal aliens settle permanently in the United States each year, the new estimates indicate that we have not yet regained control over our nation's borders."
These numbers suggest that Congress's focus on border enforcement as almost the sole means of controlling illegal immigration is inadequate. Illegal immigration can be controlled only with a strategy that combines border enforcement with efforts to turn off the magnets that attract illegal aliens in the first place � jobs and green cards. Thus, the missing elements of our illegal immigration policy are muscular enforcement of the prohibition on hiring illegal workers and deep, permanent cuts in legal immigration.
Source - http://www.cis.org/articles/2000/ins1986amnesty.html