Scientific consensus now strongly agrees that this is not likely to cause human cancer although the controversy still persists.
But controversy persisted over its embedded serial numbers.
However, controversy persists as to who requested and authorised the attack, and whether it was necessary.
Some controversy persists over the authorship of the work.
Even after decades of research and scrutiny, controversy over megalodon phylogeny persists.
The controversy about the zoning of the island reached its most intense level in the 1970s, but controversy persists to this day.
Still, the questions and the controversies have persisted.
Much controversy persists over the many competing claims of early aviators.
The first phase, with 47 units, was completed this year, but the controversy persists.
Much may depend on how long the controversy persists.