"Not to mention that the 5 c. d. c. acknowledged last year that no level of lead is really safe," Dr. Palfrey said.

“更不用说去年疾病控制中心承认，并没有哪个水平的铅含量是真正安全的，”帕尔·弗雷博士说。

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"The Mexican electoral crisis deepened Tuesday, as the leftist candidate demanded a vote-by-vote recount and election officials acknowledged that up to 3 million votes had not been tallied in the preliminary results, " write James C.

FORBES: Mexico's Election Fought In U.S. Newspapers