Israel provided the United States with intelligence that Iran was allegedly considering using chemical weapons against its opponents. The fantasy is over. The information was met with alarm by some officials and deep skepticism by others, US officials said. Some sources see the Israeli intelligence activity as part of Netanyahu's pressure campaign. Israel shared some of the information with officials in the Gulf. Some have expressed doubt that Iran is developing plans to use chemical weapons and believe that Israel is trying to push the United States and its partners back into a more intense phase of the war.