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. 有的没有受过正式教育的人可能对历史一无所知，但对于实际的事情却知道得很多。
Sometimes children do dangerous things out of ignorance. 有时孩子们出于无知会做出些危险的事儿。
crime: n. wrong moral behavior in general; something which is against the law
Crime is a difficult problem in many cities. 犯罪在许多城市都是令人头痛的问题。
Using a gun to force people to do something is a crime. 用枪强迫别人做事是犯法的。
Drunken driving is a common crime. 酒后驾车是常见的违法行为。
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. 我们的统计数据表明，人口正在增加。
The examination of statistics requires knowledge of mathematics. 数据分析需要数学知识。