In the Priority: Mars mission, you're introduced to squad mates' powers. The first introduced is Liara's "singularity". When you first access her power, she puts it right in the middle of some troopers above you on the balcony, to great effect.
This placement of her singularity power, and the placement/aiming of powers in general, seems to happen outside of your control, but I could be misunderstanding how it works. Maybe the power always affects whatever your crosshairs are centered on and I'm mistakenly believing it's the AI deciding that placement. Thus the question:
When you trigger a squad mate's power, do you control where the power is aimed, or is the ally intelligently aiming the power on his own?