Ya shiga NBC News a shekarar 1978 yana aiki a ofishin su na Chicago. A cikin 1989, Cummins ya sake buɗe ofishin NBC na Kudu maso Yamma a Dallas, ya zama wakilin ta. A cikin shekarun da suka gabata, ya ba da rahoto kan labarai daban-daban ciki har da ɗaukar hoto na siyasa na Amurka, faduwar jirgin sama, rikicin garkuwa da Iran, Yaƙin basasa na Salvadoran, fashewar bam ɗin Oklahoma City, guguwa da yawa, ambaliyar ruwa, da guguwa, da kuma ɗaukar hoto kai tsaye na Waco Siege. Aikin Cummins ya bayyana kansa lokacin da ya lashe lambar yabo don ɗaukar hoto na
Ambaliyar ruwan Midwest a shekara ta 1993. Har ila yau, ya sami lambar yabo ta Emmy ta kasa guda biyu don ɗaukar hoto na Hurricane Hugo da Salvadoran Civil War.