If you use Facebook - as I do - Facebook in all likelihood has a unique digital file of your face, one that can be as accurate as a fingerprint and that can be used to identify you in a photo of a large crowd.
If 98 out of 100 doctors tell me I've got a problem, I should take their advice. And if those two other doctors get paid by Big Snack Food, like certain climate deniers get paid by Big Coal, I shouldn't take their advice.
In our political system, money is power. And that means a few can have a lot more power than the rest. That's bad news for everyone else - and for our democracy itself.
We need to start by having a conversation about climate change. It would be irresponsible to avoid the issue just because it's uncomfortable to talk about.
My parents were really political. The news was very important in our home. We basically had dinner every night while watching the news, and then we'd discuss it with our parents.
Too many people don't protect their smartphones with a password or PIN. I anticipate that Apple's fingerprint reader will in fact make iPhone 5S owners more likely to secure their smartphones.
Grown-up love means actually understanding what you love, taking the good with the bad and helping your loved one grow. Love takes attention and work and is the best thing in the world.
There's an appeal to the American sense of exceptionalism, that we're morally superior, as way to not be self-critical. I think that's a bit dangerous.
As someone who's spent time with our troops in Iraq and Afghanistan on USO tours and met wounded warriors at Walter Reed and Bethesda, I feel a deep obligation to the men and women who have risked life and limb on our behalf.
And I think that being able to make people laugh and write a book that's funny makes the information go down a lot easier and it makes it a lot more fun to read, easier to understand, and often stronger. So there's all kinds of advantages to it.
The way I see it, I'm not going to Washington to be the 60th Democratic senator. I'm going to Washington to be the second senator from the state of Minnesota.