Breaking Bad Season 4 -LRB- 2011 -RRB- : Why could n't Tyrus find that bomb on Hector Salamanca 's wheelchair when he goes in his room to check for some riggings and stuff ?
Breaking Bad -LRB- TV series -RRB- : In season 4 , how did Gus know that something might be wrong with his car -LRB- i.e. , that Walter was going to bomb his car -RRB- ?