<p>Tighter security measures, which included physical searches at the gate of the plane and ban on any carry-on bags, came into force following the aborted bid to bomb a US airliner in Detroit on Christmas day by an al-Qaeda-linked Nigerian man.<br />Allowing the carry-on bag, the authorities said it should not be bigger than 23 centimetres by 40 centimetres by 55 centimetres.<br />"Effective today, there is a new and practical carry-on rule for passengers travelling to the United States, which upholds important security considerations,'' said Canadian transport minister John Baird.<br />As per new security regulations, passengers bound for the US can also carry a purse or laptop or briefcase or camera bag along with the carry-on. But they will have to pack all their personal items - books or magazines, personal electronic devices and medical prescriptions - in the carry-on bag before undergoing security checks.<br />Since more people from Canada than other countries travel to Canada each day, the tightened security measures led to chaos and frayed tempers at the country's airports. <br />Though the situation has eased after the holiday rush, Canada is now introducing full-body scanners to ensure full-proof security.<br />The government is buying 44 imaging scanners to be installed at airports.<br />These scanners will search people by using electromagnetic waves which scan a person through clothing to detect hidden objects. Canada has also been put on alert following recent intelligence reports that terrorists are trying to enter the US through the country.<br />Intelligence agencies from British and the US warned Canada earlier this month that 20 Yemeni-trained terrorists are trying to enter North America.<br />Canada has often come under criticism for lax security at borders, and there is still perception among many Americans that the 9/11 terrorists came from Canada.</p>
<p>Tighter security measures, which included physical searches at the gate of the plane and ban on any carry-on bags, came into force following the aborted bid to bomb a US airliner in Detroit on Christmas day by an al-Qaeda-linked Nigerian man.<br />Allowing the carry-on bag, the authorities said it should not be bigger than 23 centimetres by 40 centimetres by 55 centimetres.<br />"Effective today, there is a new and practical carry-on rule for passengers travelling to the United States, which upholds important security considerations,'' said Canadian transport minister John Baird.<br />As per new security regulations, passengers bound for the US can also carry a purse or laptop or briefcase or camera bag along with the carry-on. But they will have to pack all their personal items - books or magazines, personal electronic devices and medical prescriptions - in the carry-on bag before undergoing security checks.<br />Since more people from Canada than other countries travel to Canada each day, the tightened security measures led to chaos and frayed tempers at the country's airports. <br />Though the situation has eased after the holiday rush, Canada is now introducing full-body scanners to ensure full-proof security.<br />The government is buying 44 imaging scanners to be installed at airports.<br />These scanners will search people by using electromagnetic waves which scan a person through clothing to detect hidden objects. Canada has also been put on alert following recent intelligence reports that terrorists are trying to enter the US through the country.<br />Intelligence agencies from British and the US warned Canada earlier this month that 20 Yemeni-trained terrorists are trying to enter North America.<br />Canada has often come under criticism for lax security at borders, and there is still perception among many Americans that the 9/11 terrorists came from Canada.</p>