Time is running out for thousands of people in Africa who are in danger of contracting Ebola. A cure or vaccine will not come in time to prevent many more infections and possible deaths. And now a second case has been diagnosed in the US. Perhaps the only answer is a rapid diagnostic test that can quickly identify those who are ill and those who are not.
Invasive insects cause at least $77 billion in damage every year, according to a study released Tuesday that says this figure is "grossly underestimated" because it covers only a fraction of the globe.