The Pros and Cons of Ebola screening and the Do's and Don'ts of travel

Authorities in the UK have started a programme of enhanced screening for Ebola at London Heathrow's airport, the first entry point to be targeted. There are plans to spread screening to other airports within the country, but how effective is it in preventing Ebola-infected persons from getting into the country? Ben Neuman is a virologist at the University of Reading.