It's hard to talk about the horrors of human trafficking -- including young women and children forced into the sex trade -- without mentioning the I-10 corridor across northern Florida and over to California.

Florida and California are in the top three on the list of U.S. states involved in human-trafficking cases, according to Florida State University's Center for the Advancement of Human Rights. Any realistic discussion of this crisis has to include women, children, poverty, prostitution and crisis pregnancies.

"There are so many overlapping issues in all of this. But you know you're dealing with abused women and, often, their pregnancies," said Ashlyn Portero, co-executive director of City Church in Tallahassee, Fla., which has two campuses close to I-10.

"Churches that want to help can start right there. …When you see those connections, you know you're talking about issues that fall under the pro-life umbrella."

Thus, human trafficking is an issue that "pro-life" religious leaders in Tallahassee, as well as many other urban areas, need to face if they want to minister to women in crisis pregnancies and their children, she added. The problem is that tackling this issue also involves talking -- or even preaching -- about subjects that many people will call "political" in a state like Florida. Take immigration, for example.

Timing is crucial. Right now, thousands of Americans are preparing for the annual March For Life, which is linked to the anniversary of Roe v. Wade, the landmark U.S. Supreme Court decision in 1973 legalizing abortion. This year's march in Washington, D.C., will be on Jan. 24.

"When people come back from something like the March For Life, lots of them will be asking, 'What can we do now?' They want to do something practical," said Portero, in a telephone interview. "But these issues all seem so big and complex. It's hard to know where to start, in terms of ministries that will help real people."

One thing is certain: Nothing happens in a typical church without clear communication through preaching. That's where things can get tricky.