In our office bags were already not checked while coming in, but only while going out (including every two-wheeler owner's little trunk). And yes, I don't know

In our office bags were already not checked while coming in, but only while going out (including every two-wheeler owner's little trunk). And yes, I don't know why you find it so surprising, but any kind of flash/pen drive or storage device was one of the main things they were looking at - and if one was accidentally found in the employee's bag, they had orders to take it away. So yes, there main concern was data theft by employees (and may be small and big electronic devices as well). Your links have no connection to the daily employees' bags getting checked (even the ones who've been working in the company for literally 20 years). They are all about terror 'threats' from outside. Of course outsiders need to be checked, not employees. In fact I can find no record of an IT employee in India bringing any terror causing instrument to his/her own office, ever. Yes, the cars of our employees are still checked for safety while entering in the office premises (for bomb threat), and I don't have any problem with that.