There is no short interest and no shorting.
One share out of the 7.3 billion shares HRNF has reported are issued is so statistically insignificant, that is is puzzling why anyone would even question the fact that there is no shorting or short interest.
Shares Outstanding 7,289,762,180 a/o Jul 06, 2010
Float 4,500,000,000 a/o Jul 06, 2010
Authorized shares = 15,000,000,000 (per Heathrow's CEO)