My last column commented on some people's arguments for safeguarding passengers' privacy in their opposition to surveillance cameras being installed in taxis. After its publication in China Daily's web edition, quite a number of readers wrote online comments.

Interestingly, the numbers of those for and against were nearly equal. While the comments in favor included a couple by Chinese nationals, those opposing the cameras appeared to be exclusively made by expats, judging by their IDs and language style.

I seldom respond to online comments, especially critical ones, attached to my column. But I would like to say a few words this time, because I feel the mindsets behind these comments show the stark differences between Chinese and Western thinking.

Most of the foreign commentators expressed the concern that installing surveillance cameras inside taxis would herald more government intrusion into people's private lives. This worry is understandable, because Westerners treasure personal privacy and freedom of expression as the most essential part of human rights.

"Is the use of video cameras inside taxis to monitor morals or conversations?" commented one.

"How can we be sure the technology will be used for crime-prevention and not for some other nefarious purpose? The answer is - we can't," wrote another.

I believe, and appreciate, the sincerity of these commentators in their concern for Chinese people's human rights. I fully respect these friends for their concern. But I have to point out that this typically reflects a prejudiced understanding of China, which stems from a stereotyped Cold War image of the country.

My study of history has been too limited for me to conclude whether a ubiquitous monitoring of citizens' conversations and behavior ever existed, or to what extent it was practiced in China in the times before I became an adult in the early 1960s. However, during the period from my early adulthood till the end of the 1970s when China embarked on the reform drive, I have memories of being required to report my thoughts to "organizations" and of my schoolmates or work unit colleagues having their "wrong-doings" exposed by their pals.