Cities in the United States and Europe have increased security in and around their mass transportation systems.

VOA: special.2010.04.03

One effect of the attempt to blow up flight 253 is increased security at international airports in Europe.

VOA: standard.2009.12.27

Social security premiums have increased in the last 20 years, putting families on the threshold of poverty.

VOA: standard.2010.02.25

The UK and French governments' argument is as follows: the increased security around Calais and the recent dismantling of four people-smuggling gangs will send a strong signal to those who traffic in immigrants.

BBC: Analysis: What next for Sangatte?

We know from experience that the increased security that is implemented when we raise the threat level, along with increased vigilance, can help disrupt or deter terrorist attacks.

BBC: NEWS | Americas | US terror alert: Full text

Notes: Lines of fans were still waiting to get through the increased security at 7:20, about 10 minutes after the game started.

WSJ: Knicks hold on to beat Celtics 88-80 and advance