We have also found that the inequality of opportunity between black and immigrant Americans is marked.
But there is a window of opportunity between four to seven months when infants are very receptive to all flavours.
"I think there's a window of opportunity between now and the end of the summer," Mr. Portman said.
She does have the opportunity between now and then, if she wants it, to rebuild her reputation.
The BBC agreement does, however, place a duty on the BBC executive board to make arrangements for promoting the equality of opportunity between men and women.
The transport secretary replied: "We will have the opportunity, between London, my department and Kent to design an improved franchise for the future.
The result is a growing divide in wealth and opportunity between a narrow elite benefiting from the commodities boom and the majority, further fuelling popular discontent.
Mr. Portman, while reluctant to detail private talks, was also positive, saying: "I think there's a window of opportunity between now and the end of the summer.
If that was why women worked, it made perfect economic sense: because of the disparity in pay and career opportunity between men and women, virtually the only way a woman could improve her economic situation was to marry.
"I think there was a time when there was such a gap in equality and opportunity between men and women that we had to really fight against it," she says.
Such schools, especially in areas of social and economic disadvantage, will assist in bridging the gap in terms of opportunity between rich and poor and between north and south.
