Authorities said an FBI agent, posing as a Cuban intelligence officer, contacted the Myers in April and asked them to obtain information for Havana.

VOA: standard.2009.06.06

U.N.officials say caring for the civilians is posing huge challenges for the government and aid groups.

VOA: standard.2009.05.12

It says in some places, a majority of displaced people get their water from rivers, lakes or streams and this is posing a major health risk.

VOA: standard.2009.09.20

"So what this points out is that these types of oil disasters are not only posing risks to marine life and to fisheries and to the economy of coastal communities."

VOA: standard.2010.08.05

On the the 40th anniversary of Earth Day, this warming planet we live on is posing serious new challenges to human civilization: increasingly severe droughts, floods,and storms across the globe, and slowly rising ocean levels.

VOA: standard.2010.04.21