When it comes to accounting, managing money, and banking, making sure that the balances of 2 accounts are in agreement and the money spent matches the money that has been taken out is known as <em>"reconciliation"</em>;
<em>Seb</em> is a random exemplar to elucidate <em>reconciliation</em> in accounting; so when he notices a variation between what's in the bank and his records is when he has to review all transactions, including checks and receipts to find any mistake in his records and confirm they are accurate.
A good way to examine the trustworthiness of any news source is to compare it to other sources covering the same story. Then you can analyze for bias and form your opinion from a more objective point of view.