In Tanzania, a couple joins the animals' great migration

ARUSHA, Tanzania -- Fire was the last thing my husband, Steve, and I expected on our trip to Tanzania for a 12-day safari. Yet here we were in our Land Cruiser, bouncing along rutted dirt roads through walls of fire.Our hosts reassuringly explained that these fires were intentionally set by rangers — a necessary evil to keep the Serengeti's famous grazers nourished and content on land that had been set aside for them.