Many recent proposals for anonymous communication omit from their security analyses a consideration of the effects of time on important system components. In practice, many components of anonymity systems, such as the client location and network structure, exhibit changes and patterns over time. In this paper, we focus on the effect of such temporal dynamics on the security of anonymity network...

In mid-February this year, New York City Health Commissioner Thomas Frieden called a press conference to announce that a case of rapidly progressing, multidrugresistant HIV/AIDS had been identified. Although drug resistance is common, and rapid progression to AIDS is rare but not unheard of, it is the combination of both factors in one patient that raised the fear among public health officials ...

Terry Tempest Williams’s assertion that beauty is not something granted;rather, we must create in a broken world. What another time I might have dismissed as nothing more than rusting lawn chair, stand of brittle grass, or the moon tangled power lines compelled me to make beautiful images.