ROME - Increasing numbers of women are migrating alone, a situation that makes them vulnerable to violence and exploitation, but one that often shows their courage and commitment to making a better life for their families, said speakers at a conference in Rome.

About 214 million people live outside their country of origin, and half of all migrants are women, said Miguel Diaz, U.S. ambassador to the Holy See, which sponsored a panel discussion about migration and women May 24.