C1 Transit Visa got Refused will i be still able to transit from Miami ?

[Anil Thakkar]

Hello There,

I am an Indian Passport holder. I am Traveling to Argentina-Antarctica next month with American Airlines. My Flight is from Mumbai - London - Miami - Buenos Aires & Same route Back.

I have been refused on B2 & C1 Visa from US Embassy. I am applying...

[nam_pru]

I need to travel from India to US through London in June 2013 and my valid US Visa (H1B/H4) is getting expired in Aug 2013.
Do I need a transit visa or it's not required ?

It would be great if some one can guide me on this and provide me any official link on this info ...
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