Sri Lanka has impounded the latest edition of the Economist, which has an opinion piece critical of constitutional changes in the country.
The magazine said last week's charter revision granting the president sweeping powers and potentially unlimited terms was dangerous.
Sri Lankan authorities now regularly confiscate or delay distribution of the news and business magazine.
Last Friday's edition is the latest example.
It said that the constitutional change showed President Mahinda Rajapaksa had "preferred to put the consolidation of his family's power ahead of a sorely needed national reconciliation".
Last year, the country's 25-year-old civil war ended when the army defeated the separatist Tamil Tigers rebels.
Sometimes it is the Economist's leader articles, which have a blunt and direct style, and sometimes the news reporting that appear to irk Sri Lankan authorities.
The widely read publication often falls foul of censors before it reaches its sole distributor in Colombo.
Such bans are not always complete.
An Economist edition in mid-August was impounded when it described the difficulties of Tamil war refugees barred from returning to homes deemed to fall within high-security zones.
But it was released a few days later.
The head of the defence media centre has been quoted as saying that foreign publications are impounded if they are "harmful to national security".
Domestically, there have been many newspaper articles strongly criticising the constitutional change.
The government says this proves there is freedom of expression in Sri Lanka.
But human rights groups say that many writers wholly or partially censor their output for fear of retribution.
BBC
Economist article
http://www.economist.com/node/16992141?story_id=16992141&CFID=147606559&CFTOKEN=59983941