Charges were dropped today against the Mississippi man accused of sending ricin-laced letters to U.S. President Barack Obama and others, while authorities searched at another man's home in connection with the case.
Dzhokhar Tsarnaev immediately stopped talking after a magistrate judge and a representative from the U.S. Attorney's office entered his hospital room and gave him his Miranda warning, according to a U.S.
It is still unclear how much ammonium nitrate, the chemical linked to last week’s deadly blast, was stored at a West, Tex., plant that operated in a regulatory patchwork.
Rob Duke's insight:
Who's at fault? Is it the board, the manager, the regulators? The board will say that they didn't understand the problems. The manager will say he told the board. Regulators will say they did checks but that the can't check every little thing at every plant. Is this white collar crime or are they all right that they have no criminal culpability?
Like any method of recovering fossil fuels, hydraulic fracturing does do damage to the environment. But, even accounting for methane leakage during extraction, the total carbon cost of natural gas is less than that of coal or oil.