Breaking the plane by defense during throw in

[BillyMac]

Let's say we have a "run the endline" throwin. Team A has the ball.

1) Throwin player A1 attempts a throwin pass across the lane, not quite parallel to the endline, to teammate A2, who in just barely inbounds. After A1 releases the ball on the throwin, defensive player B3 crosses the plane of the endline, without stepping out of bounds, and steals the throwin pass. What do you have?

2) During a "trick" play, throwin player A1 attempts a pass across the lane, to teammate A2, who is also out of bounds. After A1 releases the ball on the "trick" play pass, defensive player B3 crosses the plane of the endline, without stepping out of bounds, and steals the "trick" play pass. What do you have?