1.   I know I should be ashamed, but instead I blame my ignorance entirely on them.

2.   They blame either ignorance or biased news coverage.

3.   Though simple ignorance is usually blamed for this paradox, the facts do not support that assumption.

4.   A leading AIDS expert, Nikos Matsaniotis, a professor of pediatrics and former president of the National AIDS Committee, blamed ignorance for the incident.

5.   Neil Darbyshire, writing in the conservative Telegraph, blamed the ignorance on the failure to teach students the history of the empire.