Glitches caused scattered Internet bottlenecks and telephone busy signals for thousands on the East Coast Thursday, according to the Associated Press. About 70,000 Florida customers lost service when technicians mistakenly interrupted service, the AP reported. MCI also accidentally cut a company cable in New York City at about 11 a.m. ET. The telco immediately rerouted customer calls; other phone and Net providers leasing the line experienced disruptions and delays, the AP added.