'US bunker-buster incapable of
destroying Iran nuke plants'

US "Mass Ordnance Penetrators" fail initial testing, doubtful if the can take out underground, reinforced facilities, according to 'Wall Street' Journal report; Pentagon asks congress to fund upgrade program.

Barak: Iran 'drifting' toward nuke goal line

Defense minister tells Davos World Economic Forum international community
must curb Tehran's nuclear ambitions before surgical strike becomes only option