Yes, I have that underlined a number of times.
I think that for me the issue is “ongoing investigation”. As I've already said, some of these investigations go on for years. There's the Air India inquiry, for example, but just your regular run-of-the-mill domestic terrorism investigation can take two to three years before you feel that you have the appropriate level of evidence against someone who you can bring in and actually prosecute.
Part of it might be how “ongoing investigation” is defined or understood in terms of this particular clause in paragraph 14(e). I like the suggestion of perhaps something along the lines of paragraphs 16(1)(a) and 16(1)(b). If you added something here in terms of “injurious to national security”, as in paragraph 16(1)(b), that might be appropriate.