The new federal plan, developed by the departments of Justice and Homeland Security, calls for doubling the number of border security task force teams and moving a significant number of other federal agents, equipment and resources to the border.
They found that patients showed significant improvement in the delayed verbal recall task, in which participants were asked to remember what they had been told earlier.
At the same time, the arduous task of searching for, securing and transporting clean water takes a significant emotional and physical toll on millions of people each day.
"I argued when I was chairing the city regions task group... we should be looking at some regionally-significant programmes rather than having lots of little dissipated mini-programmes all over the area, " she said.