Unintended consequences are a fact of life, but to make policy in wilful ignorance of them is not only disheartening but is nothing short of dangerous. (totalpolitics.com)
the [endangerment finding] legislation is fundamentally anti-science, just as the rhetoric that supports it is grounded in wilful ignorance. (desmogblog.com)
They were a gross distortion of the Catholic faith and revealed an almost wilful ignorance of the Catechism in answering questions about mortal sin, confession and holy communion. (faith.org.uk)