While it would be nice to think that yesterday was the beginning of the Big One, the selloff has yet to exceed even a single prior low on the daily chart, let alone the two we require to signal a bearish impulse leg.  Still, because there was no truly bad news to spook the market, the weakness may indeed represent an actual tone change on otherwise tone-deaf Wall Street.  In any case, the futures need fall only another 23 points, to 1290.00, to damage the daily chart; or 34 more points to do some real damage, since that would add a third low at 1279.00 to our count.  Most immediately, however, my minimum downside target is 1291.75.