If there were a technology that improved intelligence and cured arthritis, who would criticise it? However, that technology is not genome editing. A recent survey commissioned by the Royal Society plays to such hopes.
Chinese researchers now used CRISPR/Cas9 in humans to treat a patient with lung cancer. This is the first time that CRISPR/Cas9 was used in humans. This procedure is surrounded by much talk about an "arms race" between Chinese and US researchers.