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CKLewis , by contrast , portrays such Other-designation of identity as always and absolutely wrong . But it is important for the House to understand that this meeting in The Hague got very close to finality and to a successful agreement , and it is unfortunate that only disagreements within the European Union ultimately led to it being impossible to conclude the agreement we had hoped to get . The assessment summarized above makes clear several related findings : 1 ) lead exerts harmful effects at concentrations commonly observed among young children , including at levels below 10 mcg / dL , perhaps without any identifiable threshold of safety ; 2 ) a large proportion of the population of young children currently have BLL between 5-10 mcg / dL ; 3 ) the cognitive effects of lead toxicity are believed to be irreversible ; 4 ) children already at high risk for a range of health and developmental problems due to socio-economic disadvantage are the most likely to be exposed to lead , and may be most vulnerable to its debilitating effects . " " Universities are guilty of an advertising practice they would condemn in the commercial world , " the report says .