As the agency contemplates whether Google is a monopolist in the ill-defined market for search, they may find the competitive ground has shifted beneath their feet in just the 15 months since they began investigating.

FORBES: Who Competes With Google Search? Just Amazon, Apple And Facebook

But if shale gas that is embedded in rocks and found a mile beneath the ground is to reach its promise, it would need an expanded infrastructure in place.

FORBES: Pipeline Explosion Rattles Natural Gas Industry

In a number of areas the ground remains frozen beneath the surface, which means excess water will run into rivers instead of being absorbed by the soil.

BBC: Flood warnings issued after heavy rain and snow thaws

On Tuesday night, in another part of town, a building suddenly collapsed when the ground beneath it subsided, killing 25 people.

BBC: Dhaka: City of construction death traps