U2 must surely find themselves in an odd situation when they tour. On the one hand you have a dedicated core group of fans whose love for the band is based on the fact that U2 refuse to stand still, reinvent themselves, and push their musical boundaries. On the other hand you have a wide-ranging audience, who are simply familiar with U2's enviable catalogue of pop/rock hits and who want nothing less than a greatest hits show. So, despite being in the game for 30 years it was to U2's great credit last night that their 360 experience opened last night with four songs off their latest album. I am not aware of any of the remaining touring supergroups (Rolling Stones, The Who, Fleetwood Mac, etc.) that would dare attempt to open a 60,000-person show with songs that, quite frankly, only the hardcore fans were familiar with. It was a gamble and, for the most part, it paid off. I happen to be very fond of the new album and it was a joy to hear the band transmit their sound in the way i...