I liked this editorial, Enforcement-Plus Is Critical since I am in favor of comprehensive immigration reform, rather then "let's secure the borders and then reform the system", which seems to be favored by most Republicans.
Here are the key paragraphs:
The danger, though, is that "enforcement-first" will devolve into "enforcement-only," which would be both inhumane and impractical. So Mr. Bush, if he is exploring a compromise, should insist that enforcement and a path to citizenship remain part of one legislative package. The path to citizenship should be generous enough, and free enough of bureaucratic requirements, to be meaningful to most immigrants who have followed every other law since arriving here (including paying taxes). The comprehensive package should include a healthy enough increase in legal immigration to meet the needs of a growing U.S. economy, on both the high-tech and low-wage ends.
Most important, the delay in implementing these measures can't be inde finite -- and can't depend on conditions that will never be met. The legalization part of the package could wait for a year or two while the administration beefs up border patrols and workplace inspections. But it can't depend on some promise of decreased immigration that can never be met or measured.