• Cable has traded a 33 pip range thus far Tuesday; 1.32115-1.32445

• 1.3178-1.3267 was Monday range (1.3160-1.3345 was last week's range)

• Another Trump deadline looms, at 8pm ET/0000 GMT; Iran defiant

• Israeli military tells people in Iran to avoid using trains

• CFTC data-net GBP short fell to 52,665 contracts in the week to March 31

• UK final March services PMI due 0830 GMT; 51.2 f/c, as per flash estimate

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(Robert Howard is a Reuters market analyst. The views expressed are his own)