Source: Christian Science Monitor Interfaith marriages that remain with mixed-faith partners has shot up to 40 percent, from 20 percent in the 1960s. And raising interfaith families is increasingly common and supported by a growing number of grass-roots organizations. By Stephanie Hanes, Correspondent KENSINGTON, MD. — Jean Tutt was a freshman at Harper College in Palatine, Ill., when she met Brian Saucier. He was not at all her type, she recalls – but not because of their different religions. He had long hair and wore a denim jacket with skulls on it; she had more the button-down cardigan style. He…