text:  9-11 emergency call systems had trouble in at least four states, and earlier today, federal authorities suggested using 10-digit numbers to dial police or fire if 9-1-1 doesn't go through. Sabri? All right, Marketplace's David Brancaccio, thank you. And taking a look at CrowdStrike stock, it is down about 9% this morning. And with that, let's do the numbers.