But the storms are most often found in the United States.

VOA: special.2010.05.11

Most vaccines help prevent disease in children,but reaching children in remote rural areas is often a challenge especially in poorer and war-torn countries.

VOA: standard.2009.12.28

But the firms most often blamed for precipitating the crisis were colossal investment houses, mortgage institutions, and insurance corporations, many of which required multi-billion-dollar bailouts or government takeovers to stay afloat.

VOA: standard.2009.10.01