A Muslim woman is suing Southwest Airlines for discrimination after she says she was removed from a flight earlier this year...[A] flight attendant became concerned about something she thought Abbasi said on her cell phone. Abbasi, who was wearing a hijab, or Islamic head scarf, claims she said, "I have to go" while on her cell phone, but the flight attendant thought she said, "It's a go"...A TSA agent escorted her off the plane...[T]he airline apologized...[South West Airlines]