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<jats:p>Cell death is, ironically, an essential part of life. In recent years, the study and understanding of cell death pathways has been dramatically transformed by the insights gained into non-apoptotic pathways, including necro-apoptosis and autophagy, together with a deeper understanding of the mechanism of the apoptotic cascade. New discoveries have been enabled by cutting-edge technologies, particularly in the realm of cytometry and cell-death–specific markers. In this webinar, the latest insights into cell death pathways will be discussed, including the molecular markers and cellular changes that characterize each pathway. Viewers will also learn practical cytometry-based strategies for dissecting cell death pathways, and how to use the data to better understand the pathophysiology of diseases such as cancer as well as to uncover new targets for drug discovery and development.</jats:p>

<jats:p>Over a century ago, interactions between a Cuban scientist, Carlos Finlay, and a U.S. scientist, Jesse Lazear, led to an understanding of the role of the mosquito in transmitting yellow fever and to the development of effective countermeasures. Today, new infectious diseases confront both Cuba and the United States, but a longstanding diplomatic breach between the two nations now makes such valuable joint research more complicated, if not impossible. It is time for both governments to reconsider the rules that stand in the way of scientific collaboration, before a potentially deadly outbreak spreads through both countries and beyond. In particular, the U.S. government can make a relatively straightforward change to rules that would make collaboration much easier.</jats:p>

<jats:p>In science news around the world, SpaceX unveils its new manned capsule that it hopes will ferry astronauts to the International Space Station, the Global Polio Eradication Initiative's aim to stop transmission of the virus in 2014 is at risk, Australia's national research organization will shutter eight facilities in the wake of an austerity budget, and more.</jats:p>

<jats:p> Follow the links below for a roundup of the week's top stories in science, or <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="http://www.sciencemag.org/content/344/6188/1066.1.full.pdf">download a PDF of the entire section</jats:ext-link> . <jats:list list-type="bullet"> <jats:list-item> <jats:p> <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="http://www.sciencemag.org/content/344/6188/1066.2.summary">Random Samples</jats:ext-link> </jats:p> </jats:list-item> <jats:list-item> <jats:p> <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="http://www.sciencemag.org/content/344/6188/1066.3.summary">Around the World</jats:ext-link> </jats:p> </jats:list-item> <jats:list-item> <jats:p> <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="http://www.sciencemag.org/content/344/6188/1068.summary">Newsmakers</jats:ext-link> </jats:p> </jats:list-item> </jats:list> </jats:p>

<jats:p> Zebrafish fins, an immune cell swallowing an anthrax bacterium, spiky pollen grains, patterned muscle fibers—these are some of the tiny structures made large in a new exhibit of microscope portraits, <jats:italic>Life: Magnified</jats:italic> , now at Washington Dulles International Airport near Washington, D.C. </jats:p>

<jats:p> Computational biologist David van Dijk talks with <jats:italic>Science</jats:italic> about his new mathematical career model based on a scientist's publication record—which, he says, can foretell the researcher's odds of becoming principal investigator of a research group. And documents detailing Harvard University's investigation of psychologist Marc Hauser, who in 2012 was found to have engaged in research misconduct, are released. </jats:p>

<jats:p>Brazilian neuroscientist Miguel Nicolelis defends his plans to show off a thought-directed exoskeleton at the World Cup.</jats:p>

<jats:p>But U.S. curbs alone won't slow warming.</jats:p>