The article is written badly. Has he already given the speech or not? The article seems to already know what he will say/said:

He will be speaking in Prague because of “the close and productive bilateral relationship between the UK and the Czech Republic and further, the historic context in the aftermath of another Russian invasion in Europe”, his office said.

In his first public speech, Moore warned that China and Russia were racing to master technologies such as artificial intelligence (AI) and quantum computing, and this will again be a focus.

Government and intelligence agencies globally are seeking to harness the power of AI, but Moore will say it will complement not replace humans who can uncover secrets beyond technology’s reach.

“The unique characteristics of human agents in the right places will become still more significant,” he will say.

"They are never just passive collectors of informatio n: our agents can be tasked and directed; they can identify new questions we didn’t know to ask; and sometimes they can influence decisions inside a government or terrorist group.

"Human intelligence in the age of artificial intelligence will increasingly be defined as those things that machines cannot do, albeit we should expect the frontier of machine capability to advance with startling speed.”