Why Hasn't The Recording Industry Sued Girl Talk?

Techdirt: "Peter Friedman has another wonderful post, discussing why music is the 'main battleground' in the copyright wars, raising a few good points -- including the idea that music master tapes are dying in vaults, causing locked up music to disappear, and highlighting a troubling series of case law decisions that seem to entirely ignore the concept of fair use when it comes to music (some of which we've discussed in the past here)."