1, This gun has a hair trigger.

2, they tend to operate on a hair trigger so they can profit from breaking news before other investors act and wipe out their advantage.

3, Getting rid of weapons reduces the risk of accidental, unauthorised, hair trigger or pre-emptive use.

4, Investors fall into a special category as news consumers; they tend to operate on a hair trigger so they can profit from breaking news before other investors act and wipe out their advantage.

5, But it was a cack-handed attempt to preserve the military's impunity and privileges in a future constitution that finally set Tahrir Square back on a hair trigger.