Banks says younger viewers are more vulnerable. "When you hit your 50s and 60s, we think that concern is going to be reduced."

VOA: standard.2010.02.21

"When you are going three miles a minute, it can be hard to clearly define that."

VOA: standard.2010.07.05

"When you put that all together it suggest that we are going to need something like 50 percent more, perhaps 100 percent more, food from our existing land and that is a very significant challenge and we believe we need to be thinking seriously about that right away,"

VOA: standard.2009.10.21