BRUSSELS (Reuters) - NATO urged Russia on Friday to work with it on missile defense and proposed looking at ways eventually to link U.S., NATO and Russian anti-missile systems. One day after Washington scrapped a missile defense plan for Europe which Russia opposed, NATO Secretary-General Anders Fogh Rasmussen said Russia and the Western defense alliance should conduct a joint review of the security challenges they face. "I would like Russia and NATO to agree to carry out a joint review of the new 21st century security challenges, to serve as a firm basis for our future cooperation," Rasmussen said in...