Serial Monitor isn't printing?

I'm trying to display information to the serial monitor but it's not working. It was working before, and i'm not sure what has changed.

Here's my code, if that helps.

    #include <Arduino.h>

// initialize pin variables
int led1 = 8;
int trig1 = 2;
int echo1 = 3;
int echo2 = 13;
int trig2 = 12;
// initialize distance between ultrasonics in mm
float gap = 150.0; 

// initialize getDistance variables
int duration1 = 0;
int distance1 = 0;
int duration2 = 0;
int distance2 = 999; // cannot be 0 due to error in sensor

// initialize time counting variables
float time1;
float time2;

void setup() {
  pinMode(led1, OUTPUT);
  pinMode(trig1, OUTPUT);
  pinMode(echo1, INPUT);
  pinMode(trig2, OUTPUT);
  pinMode(echo2, INPUT);
  Serial.begin(9600);
}

void getDistance1() {
  // send ultrasonic wave using trig pin
  digitalWrite(trig1, LOW);
  delayMicroseconds(2);
  digitalWrite(trig1, HIGH);
  delayMicroseconds(10);
  digitalWrite(trig1, LOW);

  // read wave using echo pin
  duration1 = pulseIn(echo1, HIGH);

  // calculate distance in cm
  distance1 = duration1 * 0.034 / 2;
}

void getDistance2() {
  // send ultrasonic wave using trig pin
  digitalWrite(trig2, LOW);
  delayMicroseconds(2);
  digitalWrite(trig2, HIGH);
  delayMicroseconds(10);
  digitalWrite(trig2, LOW);

  // read wave using echo pin
  duration2 = pulseIn(echo2, HIGH);

  // calculate distance in cm
  distance2 = duration2 * 0.034 / 2;
}

void loop() {
  // read distance from first ultrasonic
  getDistance1(); 

  // number of microseconds since program began running
  time1 = micros();

  // if object is within 10 cm of first ultrasonic
  // 0 is needed to account for error in sensor
  if ((distance1 > 0) and (distance1 > 10)) {

    // turn on LED to indicate program is running
    digitalWrite(led1, HIGH);

    // reset distance2 for the following while loop
    distance2 = 999;

    // while object is NOT in front of second ultrasonic
    // 0 is needed to account for error in sensor
    while ((distance2 == 0) or (distance2 > 10)) {

      // read distance from second ultrasonic
      getDistance2();

      // number of microseconds since program began running
      time2 = micros();

      // calculate time it took for object to pass between sensors
      float timePassed = (time2 - time1) / 1000.0;

      // calculate the speed of the object
      float speedValue = gap / timePassed;

      // output data to serial monitor
      Serial.print("time (ms): ");
      Serial.println(timePassed);
      Serial.print("speed (m/s): ");
      Serial.println(speedValue);
      Serial.println(" ");
      digitalWrite(led1, LOW); // turn off LED
      delay(2000); // wait 2 seconds 
    }
  }
} 

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What is the value of distance1?