1 Mary E. Maxon is the associate laboratory director for biosciences at the Lawrence Berkeley National Laboratory, Berkeley, CA, USA. memaxon@lbl.gov.
2 Bruce Alberts is the chancellor's leadership chair for science and education in the Department of Biochemistry and Biophysics at the University of California, San Francisco, CA, USA. He is a former editor-in-chief of Science. balberts@ucsf.edu.