People across America are watching Arizona, seeing how we implement this law, ready to jump on even the slightest misstep.

CNN: Immigration excerpts: Obama vs. Brewer

If Mr Obama is re-elected, he will implement his vast law in full, moving America significantly further towards universal health coverage.

ECONOMIST: Health care

They did so in reaction to the announcement by Manmohan Singh, the prime minister, that India would soon receive the various approvals needed to implement its nuclear-co-operation agreement with America.

ECONOMIST: Politics this week