By Andy Walker
Amid all the speculation about who killed Mahmoud al-Mabhouh, a question remains: What was he doing in Dubai?
Hamas have refused to comment on the reasons for Mr Mabhouh's trip and they have limited their public pronouncements to promises of revenge against Israel.
But why would a known militant leader - reportedly "at the top" of an Israeli hit list - leave the protection of Syria and his bodyguards to go to Dubai in the "Westernised" United Arab Emirates?
The media reports have concentrated on two different scenarios, the first involving a planned arms deal, the second an altogether more shady conspiracy.
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