Modal Verbs
A writer can also hedge their claims by using modals of uncertainty (may/might, could, can):
Advocacy groups may ask an institution such as judges, politicians or scientists, to take on, highlight or, in the best case, show support towards their particular stance.
A policy image might be fit into one venue better than another.
In the 1950s, the American Government put forward a positive image of nuclear power as a new source of cheap and endless energy that could help reduce the dependence on imported oils.
Policy actors can make use of scientific evidence to increase the legitimacy for their stance.
Adverbs may be used to express uncertainty. Note that these adverbs often go just before the main verb in a sentence. For example:
All teachers were fully aware of the class being recorded, so they probably spoke more English than they usually would.
She argues that strategies of expansion do not necessarily have to involve authoritative institutions only.
There are always a number of issues which could potentially get onto the agenda.