CHARLOTTE--A nun who heads up a national catholic social justice lobbying group that has been at the center of a controversy spoke in Charlotte today.

Sister Simone Campbell is the executive director of "network". The group was one of several nuns' organizations recently criticized by the Vatican.

Campbell says the group was accused of focusing too much on economic injustice, while staying silent on other issues like abortion and same-sex marriage.

"There's a little bit of controversy right now that's swirling around us. The issue really that we're facing is that our focus as catholic sisters is on serving the needs of people who live in poverty, and that focus sometimes makes people think that's the only thing we care about. but actually our focus is about pro-life, its about all of life... the whole continuum, and our work is with those at the margins of our society," said Simone.

Campbell added she hopes a compromise can be reached with Vatican authorities, as they look to reform the nuns' mission.

Meanwhile, "network" will be part of a summer bus tour across the United States called "Nuns on the Bus".

Their mission is to talk to people about the things happening in Washington D.C. and important issues in the upcoming election.