Although polio has
been wiped out in most of the world, it is a growing problem in Nigeria. NewsHour
special correspondent Fred de Sam Lazaro reports on efforts to fight the disease.
A swath of northern, predominantly Muslim states in Nigeria adopted hard-line
Islamic law, sparking clashes among residents and posing problems for the government.
Following Nigeria's independence from Britain in 1960, the country's political
life has been marked by cycles of corruption, instability and military coups.
Read about Nigeria's leaders here.