december 2002

Early in 2010, the year we moved to Hong Kong, our three boys were 11, eight, and six. When we sat them down to tell them we’d be moving there for a few years, we tried to sell it as a challenging adventure. Their responses were mixed. Jake was anxious. Alex, our baby, was excited. But Matthew, our middle son, was inconsolable. He was having none of it.

“What about my friends!” he cried.

We tried to reassure him.

“You’ll be back … you’ll have your family … you’ll make new friends.”

Matthew looked at us with anguish and said, “And then I’ll have to leave them, too.”

Hundreds of millions of desert locusts are swarming in Ethiopia, Kenya, and Somalia—some of the biggest numbers seen in more than 25 years. Unusually wet weather in the area toward the end of 2019 has contributed to the massive outbreak, driving an explosion of locusts that are destroying crops and threatening food security across the region. The United Nations Food and Agriculture Organization is requesting international assistance to combat the swarms, and warning of the potential for massive growth if they are left unchecked.

HONG KONG—The protesters gathered in a suburb here over the weekend looked much like the hundreds of thousands who have flooded this city’s streets for months. Their faces were covered with masks; they spoke of anger at the government while some piled bricks, bicycles, and road signs into jumbled barricades meant to slow advancing police. At night, a few black-clad men tossed Molotov cocktails into a building lobby, sending flames racing up the walls and thick black smoke billowing out of the doorways.

This building was not a branch of a Chinese bank or a pro-Beijing business, which have over the past months become frequent targets of vandalism by anti-government demonstrators. Nor were those fortifying their neighborhood calling for the now-well-known five demands of the prodemocracy movement to be met. Their political allegiances unclear, these protesters were instead pushing back against a plan floated by the government to turn an empty housing estate into a possible quarantine site for those exposed to a new coronavirus.

One evening last week, I found myself dining in the House of Lords just as the “European Union (Withdrawal Agreement) Bill”—the law that will finalize Brexit—was wending its way through the final stages of the British legislative process. When I arrived, the debate was paused; at suppertime, formally speaking, the Lords “Adjourn During Pleasure.”

The dining room was full, which is not always the case in the evenings. But that didn’t necessarily mean the formal proceedings attracted great interest. At some point, the screens scattered around the room showed that debate had resumed. At another point, they showed that it had ended for the evening (“House Up”). As far as I could tell, barely anyone got out of his seat.  

When a new disease emerges, health organizations turn to a seemingly simple number to gauge whether the outbreak will spread. It’s called the basic reproduction number—R0, pronounced R-nought—and though useful for decision makers, it’s a nightmare for public communication. In brief, R0 is the average number of people who will catch the disease from a single infected person, in a population that’s never seen the disease before. If R0 is 3, then on average every case will create three new cases. But even though it seems incredibly straightforward, it’s hard to calculate and tricky to interpret.

R0 is important because if it’s greater than 1, the infection will probably keep spreading, and if it’s less than 1, the outbreak will likely peter out. So it offers vital information to organizations and nations as they consider how to respond to an outbreak—such as the one the world is currently experiencing.