Requiring a warrant seems like an action many cops could not care less about nevertheless.
For one, there are tons of loopholes, from border searches to "evidence of criminal activity" (dead easy to "prove" for a black/latino/poor person and have the court agree), and unless you can afford a good lawyer, good luck trying to prove your rights were violated:
For one, there are tons of loopholes, from border searches to "evidence of criminal activity" (dead easy to "prove" for a black/latino/poor person and have the court agree), and unless you can afford a good lawyer, good luck trying to prove your rights were violated:
https://en.wikipedia.org/wiki/Warrantless_searches_in_the_Un...
http://www.npr.org/2011/05/16/136368744/in-warrantless-searc...
Not to mention that warrants are not that difficult to obtain either -- except in the movies.