Why did Vidura not reveal in the royal court the Kauravas' plan to kill the Pandavas in the palace of lac?

[An online spiritual discussion was conducted on April 03, 2021, in which several devotees participated. Some of the questions of devotees answered by Swāmi are given below.]

[Smt. Anita Renkuntla asked: Pādanamaskāraṃ Swāmiji! In the Mahābhārata, the Kauravas always wanted to kill the Pāṇḍavās by playing many tricks. One such trick was the construction of palace of lac (lākṣāgṛha) for the Pāṇḍavās, in which they could be burnt alive easily. Vidura could sense in advance that something bad was going to happen to the Pāṇḍavās, in that palace. So, Vidura ordered his people to dig a path secretly below the structure for the Pāṇḍavās to escape. My question here is, why did Vidura not disclose this evil plan in the royal court and why did he allow the palace to be burnt? At Your Divine feet, Anita Renkuntla.]

Swāmi replied: Vidura is very clever minister and not an ordinary person like yourself and Myself. If he reveals the secret in the court, he will become enemy to the son of king, Duryodhana, who was always supported by his father. If the secret is revealed, he will be going against the pleasure of the king.

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