EXHIBIT 16 Letter of PricewaterhouseCoopers LLP July 14, 2000 Securities and Exchange Commission 450 Fifth Street, NW Washington, DC 20549 Commissioners : We have read the statements made by Excalibur Technologies Corporation (copy attached), which we understand will be filed with the Commission, pursuant to Item 4 of Form 8-K, as part of the Company's Form 8-K report dated July 14, 2000. We agree with the statements concerning our Firm in such Form 8-K. Very truly yours, /s/ PricewaterhouseCoopers LLP