Justin Trudeau

I remember the bad times as a succession of painful emotional snapshots: Me walking into the library at 24 Sussex, seeing my mother in tears, and hearing her talk about leaving while my father stood facing her, stern and ashen.

I had to learn to dismiss people who would criticize me based on nothing, but I also had to learn not to believe the people who would compliment me and think I was great based on nothing. And that led me to have a very, very strong sense of myself and my strengths.

Nonetheless, to the extent that terrorists have come into our country or suspected or known terrorists have entered our country across a border, it's been across the Canadian border. There are real issues there.

In 1967, the world health community launched a global effort to eradicate smallpox. It took a coordinated, worldwide effort, required the commitment of every government, and cost $130 million dollars. By 1977, smallpox had disappeared.