It wasn't ignorance of crime statistics (Para.2)
ignorance: n. lack of information or knowledge
Someone who has little official education may show ignorance of history, but be very knowledgeable about practical matters. 有的沒有受過正式教育的人可能對歷史一無所知，但對于實際的事情卻知道得很多。
Sometimes children do dangerous things out of ignorance. 有時孩子們出于無知會做出些危險的事兒。
crime: n. wrong moral behavior in general; something which is against the law
Crime is a difficult problem in many cities. 犯罪在許多城市都是令人頭痛的問題。
Using a gun to force people to do something is a crime. 用槍強迫別人做事是犯法的。
Drunken driving is a common crime. 酒后駕車是常見的違法行為。
statistics: n. numbers used as facts; the science of collecting facts through numbers to show their significance
Our statistics show that the population is increasing. 我們的統計數據表明，人口正在增加。
The examination of statistics requires knowledge of mathematics. 數據分析需要數學知識。