An interesting, but long article on how the UKs approach is differing to WHO recommendations and is based on faulty assumptions. Basically much more testing, more and longer self quarantining and contact tracing needed.
www.science20.com/robert_walker/covid19_does_not_transmit_like_simulated_flu_uks_policy_fact_checked_against_who_recommendations_and_scientific
Cannot vouch for the source at all (could be any old wackjob for all I know!) but it sounds reasonable, and a bit concerning.