Those still able to fly their aircraft during the Covid-19 emergency need to be ready to deal with all sorts of heightened security and medical concerns. AIN senior editor Charles Alcock spoke to John Cauthen, security director of risk mitigation specialist MedAire, to identify the main concerns to consider in a rapidly-changing public health emergency. He also explained how those who cannot currently fly can use the time to improve their operation in time for normal service to resume.