Of presidential security and white Corollas

Amid the tension in Sri Lanka, Neil Manthorp writes on the security situation:

... the problem with an 'upgrade' of security for the team to 'presidential' level is that presidential security is reliant on the military which is, of course, not just a target for the Tamils, but the primary target. So does surrounding the South African team with high numbers of primary Tamil targets constitute an increase in their safety, or a significant decrease?