Less than two months into Minnesota Public Radio’s grand new experiment – a non-commercial progressive rock station where DJs pick the music, local artists are prominently featured, and eclecticism is the rule – Twin Cities music fans have become slobbering devotees of the new station, known as The Current. Even more astonishing, the station has already raised hundreds of thousands of dollars from listeners without a single traditional over-the-air public radio fund drive (DJs occasionally remind listeners to pledge money at MPR’s website). But some in Minnesota are wary of the new presence, mindful of MPR’s expansionist agenda and the network’s history of bullying smaller stations out of existence.