Whatever the domestic political motives are behind this, she is right. From [1] NewsMax, with thanks to Banafsheh Zand-Bonazzi:

Teresa Heinz Kerry says she is "outraged" that President Bush didn't react more forcefully to Iranian President Mahmoud Ahmadinejad's recent recommendation that Israel be "wiped off the map," saying that the way to deal with Iranian threats is by issuing "the strongest possible condemnations."

Re-adopting her husband's last name for a column in Thursday's Jewish Forward, Heinz Kerry complained:

"The Bush administration - which so often answers challenges with confrontational language - took this occasion to whisper. With the exception of America's ambassador to the United Nations, John Bolton, who denounced the remarks as "pernicious and unacceptable," the Bush administration explained those comments as if they had been uttered by a crazy relative - and then returned to its talking points on Iran's nuclear weapons program."