After years of squabbles over the development of the sixth-gen fighter jet, the centerpiece of the projected $115 billion effort, Berlin said the companies involved “cannot reach an agreement.” MILAN and BARI, Italy — Though the sixth-generation FCAS fighter jet may be dead before it got off the ground, Germany and France plan to salvage the tech side of the joint effort and cooperate on “realistic” projects in the future, according to Germ... [2834 chars]