Con artists have been filing bogus tax returns and collecting millions. Steve Kroft finds out how far the scam has gone and why the IRS hasn't been able to stop it. The Secretary of Veterans Affairs tells Scott Pelley about his personal mission to reorganize the troubled agency for his fellow vets. While profiling Foo Fighters and their frontman Dave Grohl, Anderson Cooper accompanies the band on an exploration into the roots of American music; all that and more on "60 Minutes."Learn more about your ad choices. Visit megaphone.fm/adchoices