NATO Secretary-General Anders Fogh Rasmussen says a U.S. decision to shelve plans for a missile shield in the Czech Republic and Poland «is a positive step.» Fogh Rasmussen says he had talks with the U.S. top envoy to the alliance on Thursday morning about the changes in the plans, adding the full alliance will be debriefed later in the day. Fogh Rasmussen says new U.S. plans would improve the involvement of all NATO nations, according to a report of The Associated Press. Czech Premier Jan Fischer said Thursday that President Barack Obama told him Washington has decided to scrap the plan.