Security forces stepped up checkpoints and patrols across the country, strict curfews were enforced and borders and airports closed.

VOA: standard.2010.03.07

According to Ben Urbonas, president of the Urban Watersheds Research Institute, these nutrient contaminants tend to be more of a problem in closed water systems,like lakes, where concentrations can build up.

VOA: standard.2010.08.04

The real issue lies in how much attention and how much consistency and perseverance we put in strengthening democratic institutions The summit's mostly closed door sessions are taking up several thorny issues, among them a proposal to create an African Defense Council.

VOA: standard.2009.07.02