Tropical weather: A tropical storm like the one swirling in the Caribbean could complicate efforts to contain and clean up the spill. Any system with winds over 46 mph could force BP to abandon efforts to contain the flow for up to two weeks and delay the drilling of two relief wells that are the best hope of stopping it.
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Protest: Hundreds of people including Florida Gov. Charlie Crist joined hands on an oil-stained strip of Pensacola Beach as part of an international demonstration against offshore drilling. Organizers of "Hands Across the Sand" said similar protests were held at beaches around the nation and in several other countries.
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Containment efforts: Coast Guard Adm. Thad Allen said two containment systems collected more than a million gallons in 24 hours Friday. BP is looking to add a third vessel that would bring the total capacity to 2.2 million gallons a day. No one knows exactly how much oil is gushing, but worst-case estimates show it could be as much as 2.5 million gallons a day.
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VIPs: Some big names are coming to the gulf this week to tour areas affected by the spill. Secretary of the Navy Ray Mabus, President Barack Obama's point man for the cleanup and recovery, arrives Monday for a five-day visit. Homeland Security Secretary Janet Napolitano and White House energy adviser Carol Browner also will be in the region Monday. Vice President Joe Biden is due to arrive Tuesday.