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After suspending its efforts for the second time in two days Friday afternoon, BP resumed its attempt to plug the gushing oil leak in the Gulf of Mexico Friday evening. Meanwhile, President Obama traveled to the Gulf Coast today, expressing sympathy for residents' frustration—he called the disaster a "nightmare"—but stressing the complexity of the situation. "There are going to be a lot of judgment calls involved here," he said. "There's not going to be a silver bullet." A BP spokesman said the "top kill" operation would continue for another 48 hours; BP has put its chance of success at 60 to 70 percent. If it fails, the company will attempt to install a containment dome over the leak.