Texas bomber's change in tactics could hint at future plans

NEW YORK (AP) — The bombs were left on porches, then by the side of the road, then at a FedEx facility. The victims were black, then Hispanic, then white. The blasts happened in different parts of Austin, Texas, and then in San Antonio.The seemingly zigzag work of an apparent serial bomber may be a sign that whoever is behind the attacks is determined to launch more of them."Successful serial murderers are determined, adaptable and cognizant of their surroundings, which allows them to lear