Mass Effect 2: Lair of the Shadow Broker trailer teases Liara-heavy action

Still can't get enough Mass Effect 2? There's a rather meaty addition coming this Tuesday, which looks to explain why Liara was all pissy and preoccupied when you bumped into her on Illium. We've actually had a go at this DLC already, we just can't say too much about it until later this week. Until then, here's the trailer, which arrives just in time to remind you to buy it on Tuesday.