CONCORD, N.H. (AP) — New Hampshire Sen. Jeanne Shaheen is urging the U.S. Department of Homeland Security to help European nations struggling with a surge of Syrian refugees by sharing what has worked well along the U.S. border with Mexico. "The burden on these nations, their local communities and their infrastructure is staggering, and that is why I am requesting you work to identify ways in which the Department of Homeland Security can assist your counterparts in European nations bearing the weight of the refugee crisis, fully recognizing that there may be constraints to U.S.