NPR News Now covers escalating student protests in Paris, a U.S. embassy alert urging Americans to leave Russia amid plague concerns, and Tropical Storm Isaias threatening the Gulf Coast. The broadcast also marks the third anniversary of the Hamas attack on Israel and reports on a 165-million-year-old fossil in Inner Mongolia that reveals the earliest evidence of chewing and suckling in mammals. Additionally, the episode notes that the Nobel Prize in Chemistry was awarded to Kenzo Soai and Henri B. Kagan for their work on molecular mirror images.