Trump's warning to Iran raises fears of war -- and confusion

President Donald Trump's amped up rhetoric that the US is "locked and loaded" sparked new fears of war with Iran but also confusion about his true intentions following an attack on a Saudi oil field that rocked global oil markets.

The Trump administration upgraded the incident into a global crisis with its swift move to directly blame Iran for the coordinated drone strike. The strike was claimed by Houthi rebels that Tehran supports in Yemen.

The President's comments sparked immediate uncertainty over whether he was being serious or whether this...