LA Times: In just eight words, James “Guin” McGuinness, a veteran environmental activist, summed up the fight being waged against Massey Energy Co.’s mountaintop removal mining here in the Coal River Valley. “They draw a line,” he said. “We step over it.” Although public scrutiny of Massey has focused on the April 5 mine explosion that took 29 lives — a congressional committee grilled company executives last month — the battle between the company and activists has largely escaped …