Window for diplomatic Iran closing?

According to Western intelligence sources, Israel is using a permanent
base in Iraqi Kurdistan to launch cross-border intelligence missions
in an attempt to find "smoking gun" evidence that Iran is building a
nuclear warhead. Israel has used sensitive equipment during its covert
operations to monitor the radioactivity and magnitude of explosives
tests. Israeli special forces used Black Hawk helicopters to carry
commandos disguised as members of the Iranian military and had been
conducting intelligence missions in the area for several years. In
recent months efforts aimed at the Parchin military complex near
Tehran to which the International Atomic Energy Agency have
intensified. Meanwhile, U.S. President Barack Obama said on Sunday
there was still time to resolve the Iranian nuclear standoff through
diplomacy, but that the window for such a solution was closing.