A Supertanker is easier to hijack than an airliner

2 January 2009 is coming soon, and Osama bin Laden has big plans:
There is debate on how effective a floating bomb would be.
While some analysts have said ships carrying crude oil or liquefied natural gas (LNG) could be captured and detonated, Storey noted that crude is not very flammable and LNG carriers are robustly constructed and include significant safety features.
Ships carrying ammonium nitrate are a bigger concern -- the fertilizer is highly explosive when mixed with fuel oil and was used in the Oklahoma City and Bali bombings.
When a fire detonated around 2,300 tons of ammonium nitrate aboard a vessel in Texas City's port in 1947, the blast caused a 5-meter tidal wave that swept through the town. At least 567 people were killed and more than 5,000 injured. Hundreds of homes were destroyed and two small planes were blown out of the sky.