Privacy concerns would be raised. does this mean there's a dangerous gap in the system? >> pilots are, for the most part, very mentally stable, very sound people, very determined, very professional. i don't think that you're going to need or have to have the criteria tightened up. >> reporter: mark weiss also points out many commercial pilots come straight to those jobs from the military where they've gotten regular psychological screening. brian todd, cnn, washington. as the west imposes sanctions on russia over crimea, vladimir putin appears to be moving forward with plans to annex the ukr...