Finally! Someone Else Shares My Concern

Alexander at Daily Kos:

What is puzzling everyone at the moment is the discrepancy between the exit polls and the votes that are being reported. The way the pundits are framing this issue is: what went wrong with the exit polls?
But what reasons do we actually have for thinking the exit polls were wrong? Previously, exit polls have reflected fairly closely the finally recorded vote. (On MSNBC, I heard Matthews suggesting that Republicans not liking to talk to pollsters explained the discrepancy: that's a new one to me.)

The technology of exit polling has not changed. There has been a change in voting technology, however -- namely, electronic voting machines. Neither electronic voting machines nor exit polls leave a paper trail. (Actually, exit polls do leave a paper trail, but it has no legal import.) So why should we believe electronic voting machines more than exit polls?