Agence France-Presse: Senators vowed Wednesday to revamp US energy priorities as they laid out a long-awaited plan to fight climate change, but they faced a tough battle ahead to sell a delicate compromise. The legislation comes in the shadow of a giant oil spill in the Gulf of Mexico, which led the senators to offer greater ecological protections for offshore drilling — one of the most controversial parts of the package. Senator John Kerry, the main force behind the effort, said the bill would put …