WASHINGTON (AP) - Four leading GOP House members and senators announced a joint effort Thursday to rewrite the Endangered Species Act to toughen up habitat and scientific provisions. Environmentalists immediately criticized the plan as the latest attempt to gut the landmark law. The lawmakers said it was the first time members of the House and Senate had banded together at the beginning of a congressional session to amend the 1973 act. Previous attempts to change the law have failed, but they said this time they hoped to produce a single Endangered Species Act reauthorization bill that could be introduced in...