In September 2008, a high-pressure natural gas pipeline operated by BP ruptured, sending two segments of pipe flying 900 feet across the tundra.

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The mains gas was being operated within normal pressure parameters and there were no signs to suggest the 20th Century pipe needed replacing urgently, although there were national plans to replace pipe networks whenever they came within 30m of a domestic building.

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Secondly, margins of its company-operated restaurants are under pressure.

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As a result, terror-free investing can bring pressure to bear on foreign-owned and -operated companies on what might otherwise be described as an "extraterritorial" basis.

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The pressure came to a head in 2007, when Venezuela nationalized several oil projects operated by international partners.

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Unique pressure points will come from competitors Wal-Mart , Target and potentially better operated Supervalu stores.

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Because this was a reactor that operated on water that was already at its boiling point, this also meant that the pressure inside the reactor was rising as well.

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