What seems particularly foolish(and, when it bites some poor random guy, ‘foolish’ is not merely a defect of intellect) is that the US Treasury list of Specially Designated Nationals provides much greater detail than just a name; so using a name-based block is both far too broad(Hey, let’s block the intersection of “everyone named ‘Khan’ because the mongols conquered all the things” and “Everyone named ‘Muhammad’ because Islam”!) and far too toothless(spoofing a name being pretty trivial).
There is a Muhammad Khan, possibly several, on The List; but additional details are available:
KHAN, Mohammad Naushad Alam (a.k.a. KHAN, Muhammad Nawshad Alam;
a.k.a. KHAN, Muhammad Nowshad Alam; a.k.a. KHAN, Naushad Aalam;
a.k.a. KHAN, Rahat Hasan); DOB 10 Aug 1971; alt. DOB Dec 1970; POB
Karachi, Pakistan; Passport YZ4107191 (Pakistan) issued 15 Apr 2008
expires 14 Apr 2013; alt. Passport Booklet: A6169832 (Pakistan);
alt. Passport YZ4107192 (Pakistan) issued 19 Feb 2009 expires 18
Feb 2014; alt. Passport Booklet: A8235074 (Pakistan); National ID
No. 4200004347195 (Pakistan); alt. National ID No. 50492460414
(Pakistan); Holder of a Pakistan passport; Holder of a Bangladesh
passport (individual) [SDGT].
KHAN, Mohammed (a.k.a. KHAN, Asad; a.k.a. KHAN, Haji Asad; a.k.a.
MOHADMMADHASNI, Asad Khan; a.k.a. MOHAMMADHASNI, Haji Asad Khan;
a.k.a. MOHAMMADHASNI, Haji Asad Khan Zarkari; a.k.a. MOHMMADHASNI,
Asad Khan; a.k.a. MUHAMMADHASNI, Asad Khan; a.k.a. ZARKARI, Asad
Khan; a.k.a. “ASAD, Haji”; a.k.a. “HAJI ABDULLAH”), Nimroz,
Afghanistan; Kabul, Afghanistan; Karachi, Pakistan; Basalani,
Afghanistan; Balochistan, Pakistan; Dubai, United Arab Emirates;
DOB 01 Jan 1955; POB Nimroz, Afghanistan; citizen Afghanistan;
Passport OR1126692 (Afghanistan) (individual) [SDNTK].
KHAN, Muhammad Nawshad Alam (a.k.a. KHAN, Mohammad Naushad Alam;
a.k.a. KHAN, Muhammad Nowshad Alam; a.k.a. KHAN, Naushad Aalam;
a.k.a. KHAN, Rahat Hasan); DOB 10 Aug 1971; alt. DOB Dec 1970; POB
Karachi, Pakistan; Passport YZ4107191 (Pakistan) issued 15 Apr 2008
expires 14 Apr 2013; alt. Passport Booklet: A6169832 (Pakistan);
alt. Passport YZ4107192 (Pakistan) issued 19 Feb 2009 expires 18
Feb 2014; alt. Passport Booklet: A8235074 (Pakistan); National ID
No. 4200004347195 (Pakistan); alt. National ID No. 50492460414
(Pakistan); Holder of a Pakistan passport; Holder of a Bangladesh
passport (individual) [SDGT].
KHAN, Muhammad Nowshad Alam (a.k.a. KHAN, Mohammad Naushad Alam;
a.k.a. KHAN, Muhammad Nawshad Alam; a.k.a. KHAN, Naushad Aalam;
a.k.a. KHAN, Rahat Hasan); DOB 10 Aug 1971; alt. DOB Dec 1970; POB
Karachi, Pakistan; Passport YZ4107191 (Pakistan) issued 15 Apr 2008
expires 14 Apr 2013; alt. Passport Booklet: A6169832 (Pakistan);
alt. Passport YZ4107192 (Pakistan) issued 19 Feb 2009 expires 18
Feb 2014; alt. Passport Booklet: A8235074 (Pakistan); National ID
No. 4200004347195 (Pakistan); alt. National ID No. 50492460414
(Pakistan); Holder of a Pakistan passport; Holder of a Bangladesh
passport (individual) [SDGT].
If we really can’t afford to have our advanced 3rd-person shooter technology making its way into the hands of Mahometan foreigners, we should probably be verifying passports or other state IDs. If we are actually only worried about a small number of slightly cryptic Pakistani guys(who, for irony’s sake, may well be ISI-linked and thus officially our Freedom Buddies), then we should probably be using a different mechanism.