http://mashable.com/2011/02/04/canada-bandwidth/
“But the threat of usage-based billing remains. It has a particular resonance in the U.S., where net neutrality advocates fear that large Internet providers may start doing something similar — and where a vague FCC ruling has done nothing to abate that fear. (Just yesterday, Verizon said it would start slowing Internet access for the top 5% of mobile users, effective immediately.)”
