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The Massacusetts Bay Transportation Authority has had to repair so-called "heat kinks" during recent high temperatures. The triple-digit temperatures pummeling the East Coast this week present many dangers: heatstroke, dehydration and power outages. This week, the Washington, D.C.,…

EAST COAST HEAT WAVE | Scorching heat and humidity gripped the northeast and mid-Atlantic states, pushing electricity use toward record levels and disrupting train travel. Gwen Ifill reports on how people are coping with temperatures topping 100 degrees. REPUBLICAN PARTY'S…

NEWSMAKER INTERVIEW: TIMOTHY GEITHNER | Concerns about the economic recovery linger on Wall Street as the service industry grew at a slower rate than expected last month. Jim Lehrer talks with Treasury Secretary Timothy Geithner about the state of…

WEATHER HINDERS GULF CLEANUP | Rough conditions caused by weather prevented many skimmer boats from assisting with oil cleanup in the Gulf, including the testing of a new "super skimmer" vessel. Ray Suarez talks to Greg McCormack, director of the…