A gentleman riding a bicycle, briefcase in its basket, huffed and puffed while pedaling up the right-hand lane of 18th Street Northwest near the White House, the gradual incline making his commute home rather difficult, while causing cars directly behind him to creep along in the evening rush.

We're not certain whether those drivers who sounded their horns were sending a thumbs-up or thumbs-down to the cyclist after reading what was printed on the back of his shirt: "One Less Car."

POLITICS OF FEAR

As Washington conferences go, it was bound to be intriguing: "Panic Attack: The New Precautionary Culture, the Politics of Fear and the Risks to Innovation."

Among the participants was Ronald Bailey, science correspondent for Reason magazine and the 1993 Warren T. Brookes Fellow in Environmental Journalism. He summarizes the American Enterprise Institute conference as an examination of how Western countries have lost their cultural nerve by accepting the "precautionary principle": innovators must prove their inventions will never cause harm before they are allowed to deploy or sell them.