Here is the message as I see it:
Transcanada (foreign pipeline behind Keystone XL) is unsafe The Canadian government admits
Transcanada whistleblower Evan Vokes claims are valid.
Enbridge is unsafe. Enbridge is the foreign pipeline operator trying to sneak a Keystone XL sized tar sands pipeline expansion through in MN. Both their rail tank cars and their pipelines have been shown to be unsafe and they have been fined for numerous accidents involving negligence leading to death and spills.
Rail tank cars filled with tar sands products are unsafe, e.g.
Lac-Mégantic killed 47 people. Rail is just as dangerous as pipelines!
Light sweet crude is preferable if you need petroleum-based energy, it is cleaner to produce, and today it is on sale. Turns out there is less demand, and the speculators bubble has burst for one reason or another (petrodollar warfare with Russia?).
Fact is Obama will veto Keystone XL and the Democrats in the U.S. Senate will be able to sustain the veto. Hopefully the Senate and the Obama administration will look into the scope creep on the Enbridge border crossing permits, too.