Moral conundrums and more: Books in brief

Mitochondria (artificially coloured) are swapped between cells, contrary to an earlier dogma that they stayed with their cells of origin.Credit: K.R. Porter/Science Photo Library Cancer cells can poison attacking immune

Early-warning systems can drastically reduce the impacts of natural hazards. Informing people that a storm or flood is imminent can give individuals and governments precious time to prepare and alleviate

Early-career scientists fear that their chances of making a life in the US research scene are slipping away. Credit: Karen Ducey/Getty The first in her family to go to university,