He worked at Alstom's rail division and then ran it for several years in the late 1990s.

FORBES: The Great Train Catch-Up

The rail division, which runs Great Western, ScotRail, Capital Connect, and TransPennine Express, grew passenger revenues by 4.4%.

BBC: Increase in FirstGroup profits

Turnover and profits at bus and rail operator FirstGroup were boosted by increased ticket sales at both its UK rail and US Greyhound bus division.

BBC: Increase in FirstGroup profits

But the stock- futures division is the third rail of the exchange world.

FORBES: A Wild Card in the Exchange Wars

The first line of defense, in some cases, is the train engineers themselves, said Michael Doyle, general chairman of the Engineers Division of the Association of Commuter Rail Employees, which represents train operators on Metro-North.

WSJ: Metro-North Is Set To Restore Full Service Wednesday

That rail line runs through the heart of the southwest division of the Los Angeles Police Department, the district where Dorner, a former LAPD officer, had been assigned for patrol duty while on the force.

CNN: STORY HIGHLIGHTS