This is an old article, but pretty good.
With 8 million illegal aliens in the United States and 1,062,279 apprehensions in 2002 this policy does not seem to be working. Another important issue is the implied powerless of the illegal alien. The growing Hispanic population and the increasing number of illegal aliens with legal ties has a direct relationship to this perception.
In addition, other participants in the general environment, such as politicians and religious groups, have a vested interest in not enforcing interior immigration laws. Such groups stand to receive benefits from a larger alien population--one for votes, the other for potential converts. The implied powerlessness may be a strategic attempt to soften the impact of an amnesty program. Skerry compares the two perspectives of the illegal living in the shadows contrasted by those that are more vocal about their plight. In his opinion, the latter is a more accurate characterization. (Skerry, 2001) More recently, advocates compared the plight of illegal aliens to the civil rights movement and organized an immigrant worker’s freedom ride to rally support. Found at
http://www.immigrantworkersfreedomride.com/default.asp