"Nanoshells can be directly injected, " said Jennifer L . West of Rice University, " or, our most recent study shows that you can inject nanoshells intravenously and they will accumulate in tumor sites because the blood vessels in tumors are leakier than elsewhere in the body ."
12.
Compared with most European countries, America's airwaves are impossibly cluttered, thanks to its having been an early adopter of commercial wireless services of all sorts ( early radio technology was far " leakier " than today's, and so had to use broader frequency bands to avoid interfering with other services ).