We always knew how to honor fallen soldiers. They were killed for our sake, they went out on our mission. But how are we to mourn a random man killed in a terrorist attack while sitting in a cafe? How do you mourn a housewife who got on a bus and never returned?

The weapon of suicide bombing is so desperate that you aren't even left with the possibility of taking revenge or punishing anyone; the terrorist is killed along with his victims, his blood mixing with theirs.

As a young physician in the mid-'80s, caring for people who had contracted H.I.V., I lost two of my patients to suicide at a time when the virus was doing very little harm to them. I have always thought of them as having been killed by a metaphor, by the burden of secrecy and shame associated with the disease.

Countries which favour openness and the mobility of skilled talent secure the development of more diverse and culturally rich work environments, a higher level of innovation, as well as entrepreneurship and wider international networks.

The last time I heard real screaming in the theatre was when I went to see a movie I did years ago, called 'Wait Until Dark.' Now, my mother was the least emotional person on the planet, but when I got killed in the movie, she stood up and screamed, 'That's my son!' At Radio City Music Hall in New York!

Most high-income people in our country do not realize that their incomes are being subsidized by their protection from competition from highly skilled people who are prevented from immigrating to the United States. But we need such skills in order to staff our productive economy, so that the standard of living for Americans as a whole can grow.