Science

Surveillance society
Security cameras survey public areas, such as where we withdraw money, where we shop and where we wait for buses or trains. But where does it cross the line from protecting the public to invading one's privacy?
BP's ongoing oil containment efforts
President Obama is sending a bomb builder and Mars expert to help BP tackle the problem of stopping the oil flow into the Gulf of Mexico. Midmorning asks if the latest engineering efforts are good enough and which ideas are still left on the table.
History, in 140 characters or less
The Library of Congresss has acquired Twitter's entire archive of public tweets. Will future historians learn anything of substance from them? Geek Squad founder Robert Stephens tackles that question and other tech topics.
Big thinkers on children's brain development
Psychologist Alison Gopnik says that scientists have learned more about the brains of young children in the last thirty years than they had in the previous two thousand. Also segments from the TED Twin Cities conference held at the Science Museum Wednesday on new ideas being tried in Minnesota to promote child development.
Technologies for oil spill cleanup
Experts are throwing everything they've got at the oil spill in Gulf of Mexico to mitigate the spread of oil to the gulf coast including: dispersants, skimmers, and booms. Midmorning discusses the technology behind oil cleanup and whether it will make a dent in this environmental disaster.