I've been watching this debate for some time now, and I must admit that every time Web Buddy asks for evidence, he gets it, and then goes on to ignore it
You can't compare ADSL and PLC. Two different technologies, and two different methods of delivery. Telephone cables in the UK are 99% underground, and therefore won't radiate any significant interference. The story is quite different with power cables - 90% of the power distribution in the UK is over ground, on pylons which make very efficient radiating antennas.
I'm appalled at the poster who said "I want broadband, and I don't care about the interference". I hope that none of your friends or family ever has to take a long-haul flight, because when aircraft are outside the range of VHF transmitters (which are fairly resilient to PLC), all aircraft use short-wave radio to stay in contact with the ground. On the same frequencies that PLC uses.
Please, let's stop "glossing over" the evidence to support your point of view. Everybody wants broadband, but it should not be done by risking the safety of others. I'm sure that if PLC is safe, the UK will adopt it. We should bear in mind that in some countries in the world, the worth of a human life often outweighs commercial interests, so it's not a good idea to say "Well, the
xxxxxxx have introduced it, so it must be OK."