In his address, the president listed steps so far to enhance security, including more airport screening and tighter monitoring of U.S. visa holders.

CNN: Obama on intel system: 'This was a screw-up'

She said defeating malnutrition would only be possible through effective screening, good communication between health services and close monitoring throughout a patient's hospital stay.

BBC: One in seven elderly 'malnourished'

This could allow us to divide the general population into risk categories, in order to better target monitoring and preventative strategies, such as screening for breast and bowel cancer, to those at greatest risk.

BBC: Has decoding the genome lived up to hype?