Canada will allow the use of the DRS in two straight lines

As read it, in the Grand Prize Canada, the DRS may acvtivarse in two of its lines if we ignore The F1 Times. According to this medium, Charlie Whiting would have confirmed that in the Gille Villeneuve circuit there will be two areas of activation for the system, and Peter Windsor also commented it on his Twitter account. Peter Windsor, the journalist who comes to where no one else can get. Apparently, the condition to make this possible is that the two straight lines are straight, and another circuit that can "enjoy" this privilege would be Valencia.
Then, in the long line that runs before the chicane entrance to goal (and the wall of Champions) the DRS it will activate, closing at the time of halt to deal with the curve 12. To pass the wall of Champions without a scratch, pilots can again activate the DRS to deal with the line of goal with another new possibility to try an overtaking. The area of detection will be the turn 10 (fork), and thus we will have to last the small curve 11 the system will be the official ok.
In Valencia the use zone it is said that it will be between the curves 10 and 12, and between 14 and 17 of the urban layout. News surprising because until now we could see (by the less I) the use of the DRS as something quite limited (and sometimes badly positioned as in China), and check how on certain circuits use is extended to two straight gives me enough to think about. In addition, these two lines (in Canada) are consecutive, Yes, but are separated by a chicane that even though it is fast, continues to be an element of speed reduction.
Seems to me think that, in a move of overtaking in which the car to exceed b, the latter was her may return the following line to the car ahead of that. And I want to see how it evolves the race in these conditions because it gets to measure the distance, there is just a measuring curve. It is not necessary to be a second or less of the car that goes ahead. Correct? If not so, something I do not block either going to be the case that I just comment may not happen. I think that I've been busy.
Let us put a fictional case. Vitantonio Luizzi lies within 1 second behind Pastor Maldonado fight for tenth position. In the back straight, Liuzzi activates the DRS and beats the position Maldonado, who after the chicane entrance to goal decides to give the play by activating its DRS. Could it do so? That's the number 1 question. Question number 2 is, if Vitantonio Liuzzi is, past the curve 12 and 13, another car ahead of him, do can activate the DRS to move forward, or simply not because at turn 10 (measurement area) it was not within the regulatory time? Reasonable doubts for me right now, and If the two answers are "Yes" will see an incredible Grand Prize of Canada. And Valencia, also.

The FIA decided to permit the use of the DRS in the main straight of Monaco

Charlie Whiting has met with drivers and teams, during this great prize of Turkey, and in the end the FIA has decided to allow the use of the DRS at the main straight of Monaco, for the Grand Prix to be held in just three weeks, the following week of the Grand Prize of Spain.
Although more than one driver showed his disagreement with the idea of using the DRS in Monaco, in the end the decision is which is, and will have to comply, in spite of what Mark Webber argued at the meeting. Of made, the Australian was one of the more vocal against the DRS in Monaco, but his arguments were rejected.
Nevertheless, the decision, which was sent by letter to the twelve teams in the Championship, is to use the DRS in the line of goal, and not in the line of the tunnel, as many suspected that it would be. At least, should recognize that it makes sense. The stretch of the tunnel would be very dangerous to use the DRS; in goal, not so much.
In any case, I believe that it is a mistake to allow the use of the DRS in a piece of straight, and although in the end did not happen anything, the risk is great, and seems to accept this risk in exchange for a few overtaking not worth it.