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The Weekly Download: Tropical Storm Isaias, Beirut explosion, Rokerthon


Weekend TODAY’s Kristen Welker takes a look back at the biggest stories of the week, including the impact of Tropical Storm Isaias on the East Coast, a massive explosion in Beirut, Lebanon, that killed nearly 150 people, and Al Roker and a team of chefs setting a new Guinness World Record for the most people taking part in an online sandwich-making relay.