On the 21st: We continue our week in Springfield, today from the WUIS studios. We hear about the 'Radium Girls' of Ottawa, Illinois and the health problems that they suffered after working at the Illinois Radium Dial company. Plus, your Illinois politics update on the eve of the budget address. Also, what alternatives are there to using salt to melt ice in the winter? And, we continue our series of attorney general interviews, this time with Sen. Kwame Raoul. 

Guest: Diana Preston.

In less than fifty years, what was once an open and joyous quest to learn the secrets of the atom became a sprint to develop the ultimate weapon of mass destruction. This morning on Focus we'll talk with Diana Preston about her new book Before the Fallout, which covers the period of history between the discovery of radium in 1898 and the detonation of the first atomic bomb.