major support for frontliis provided by the john d. and catherine t. macarthur foundation, committed to building a more just, verdant and peaceful world. more information is available at macfound.org. additional support is provided by the park foundation, dedicated to heightening public awareness of critical issues. the ford foundation, working with visionaries on the front lines of social change worldwide. at fordfoundation.org. the wyncote foundation. and by the frontline journalism fund, with major support from jon and jo ann hagler. and additional support from susan hunter and douglas watson and the orfalea foundation. >> caleb. caleb. come on, get up. >> narrator: nikki dangerfield is a single mother with four children. she works long hours as a fedex manager. >> i get up at the crack of dawn and sometimes i don't get home from work until 6:00, 7:00, maybe 8:00. and then cook dinner, talk to the kids, and then sometimes i'm talking to them but halfway sleeping. it's like, "okay, mama, go to bed." so yes, i'm very busy, but i'm only busy for them.