Airing of Grievances

I'm a big fan of the television show 24 but every now and again certain aspects of the show's plot lines are completely nonsensical and I feel forced to air my grievances. The double episode from last Monday probably had one of the most egregious examples of this that I can remember (besides the helicopter not being able to catch up and find Marwan's jeep in Season 4).

The problem has to do with Lynn McGill's key card. In an earlier episode this year (1 p.m. -2 p.m), Lynn McGill (played by Sean Astin aka Samwise Gamgee) was lured outside CTU by his drug addict sister for money. While outside Lynn was beaten up by his sister's boyfriend (also a drug addict) and his wallet was taken. Lynn's key card, which eventually allowed terrorists access to CTU, was in the wallet.

The problem is this: How and why did the terrorists contact/get involved with Lynn's sister's boyfriend to get the key card? One would assume that they knew the boyfriend before he got the key card and hence the reason for the mugging since it makes even less sense that the drug addicted boyfriend would know what the key card was and then be able to contact the exact terrorists who would want it in the span of a couple of hours.

One might argue that the terrorists had been plotting this for a while and were able to figure out who would be at CTU and whose key card they could acquire. But then other problems arise. Lynn worked at District before this year's 24 (he arrives at CTU during the 10 a.m. - 11 a.m. episode) so how would the terrorists have known that he would be working at CTU on the day in question? Furthermore, why would they be planning on getting Lynn's key card to attack CTU months in advance when their original hope was to use the nerve gas against Russia?

Feel free to air some of your grievances with this year's 24 in the comments section.