Should the "good guys" be able to use spyware? Similar questions have been raised about police hacking. The methods that law enforcement officials are allowed to use to investigate crimes vary (as does public opinion, reports say) depending on what part of the world you are in.

In the United States, the FBI recently used a secret surveillance program, a computer and internet protocol address verifier, to catch an alleged teen bomb threat suspect.

Read Kevin Poulsens report on Wired.com and decide for yourself.